Data sheets for geodetic survey markers contain a lot of technical data but they also describe the route used to reach the marker. These descriptions contain references to old roads, lookouts, logging camps, etc. in the area at the time the marker was recovered.
You can look up the data sheets for geodetic survey markers here:
Top site
I used the Radial search to find the data sheet for the marker at the top of Larch Mt.
This image shows the settings and coordinates I used.
A reference to "Camp A"! I believe this is road 550, the original Larch Mountain Road.
From 1942 recovery descriptionTO REACH STATION, LEAVE COLUMBIA RIVER HIGHWAY (U.S. 30) AT ACUTE
HIGHWAY INTERSECTION ABOUT 0.8 MILE WESTERLY FROM CROWN POINT,
DRIVING E OVER SIGNED ROAD THROUGH PALMER AND CAMP A, ABOUT 11
MILES TO END OF GRADE, FROM WHICH POINT IT IS ABOUT 1 MILE EASY
TRAIL TO U.S.F.S. STEEL LOOKOUT TOWER. FROM TOWER PROCEED
EASTWARD ALONG TRAIL ABOUT 0.2 MILE TO STATION.
.STATION MARK IS IN DOME-LIKE ROCK AND CARE SHOULD BE
EXERCISED NOT TO SLIP OFF, ESPECIALLY TO NORTH
This is the entire datasheet if you don't care to search for it online:
Spoiler: show
The NGS Data Sheet
See file dsdata.txt for more information about the datasheet.
PROGRAM = datasheet95, VERSION = 8.5
1 National Geodetic Survey, Retrieval Date = OCTOBER 14, 2014
RD2150 ***********************************************************************
RD2150 DESIGNATION - LARCH MOUNTAIN LOOKOUT TOWER
RD2150 PID - RD2150
RD2150 STATE/COUNTY- OR/MULTNOMAH
RD2150 COUNTRY - US
RD2150 USGS QUAD - MULTNOMAH FALLS (1994)
RD2150
RD2150 *CURRENT SURVEY CONTROL
RD2150 ______________________________________________________________________
RD2150* NAD 83(1991) POSITION- 45 31 50.87715(N) 122 05 22.94218(W) ADJUSTED
RD2150* NAVD 88 ORTHO HEIGHT - **(meters) **(feet)
RD2150 ______________________________________________________________________
RD2150 LAPLACE CORR - 8.01 (seconds) DEFLEC12A
RD2150 GEOID HEIGHT - -21.90 (meters) GEOID12A
RD2150 HORZ ORDER - THIRD
RD2150
RD2150.The horizontal coordinates were established by classical geodetic methods
RD2150.and adjusted by the National Geodetic Survey in October 1991.
RD2150.
RD2150.The Laplace correction was computed from DEFLEC12A derived deflections.
RD2150
RD2150. The following values were computed from the NAD 83(1991) position.
RD2150
RD2150; North East Units Scale Factor Converg.
RD2150;SPC OR N - 208,368.704 2,375,838.031 MT 0.99991452 -1 07 38.6
RD2150;SPC OR N - 683,624.36 7,794,744.20 iFT 0.99991452 -1 07 38.6
RD2150;SPC WA S - 23,200.383 375,817.595 MT 1.00008227 -1 09 17.1
RD2150;SPC WA S - 76,116.59 1,232,994.89 sFT 1.00008227 -1 09 17.1
RD2150;UTM 10 - 5,042,321.177 571,079.510 MT 0.99966212 +0 38 58.7
RD2150
RD2150 SUPERSEDED SURVEY CONTROL
RD2150
RD2150 NAD 83(1986)- 45 31 50.88988(N) 122 05 22.95052(W) AD( ) 3
RD2150 NAD 27 - 45 31 51.48000(N) 122 05 18.63100(W) AD( ) 3
RD2150
RD2150.Superseded values are not recommended for survey control.
RD2150
RD2150.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
RD2150.See file dsdata.txt to determine how the superseded data were derived.
RD2150
RD2150_U.S. NATIONAL GRID SPATIAL ADDRESS: 10TER7107942321(NAD 83)
RD2150
RD2150_MARKER: 57 = LOOKOUT TOWER
RD2150
RD2150 HISTORY - Date Condition Report By
RD2150 HISTORY - 1947 FIRST OBSERVED CGS
RD2150 HISTORY - 1987 MARK NOT FOUND USPSQD
RD2150 HISTORY - 1988 MARK NOT FOUND USPSQD
RD2150
RD2150 STATION DESCRIPTION
RD2150
RD2150'DESCRIBED BY COAST AND GEODETIC SURVEY 1947 (WRH)
RD2150'THE STATION IS ON THE SUMMIT OF LARCH MOUNTAIN, A HIGH WOODED
RD2150'PEAK, THAT IS ABOUT 10.0 MILES SOUTHWEST OF BONNEVILLE, 4.0
RD2150'MILES SOUTH OF THE COLUMBIA RIVER, AND ABOUT 4.5 MILES SOUTHEAST
RD2150'OF BRIDAL VEIL. THE LOOKOUT TOWER IS ABOUT 100 FEET IN HEIGHT,
RD2150'AND HAS A TWO STORY HOUSE WITH A POINTED PEAK ON ITS TOP.
RD2150
RD2150 STATION RECOVERY (1987)
RD2150
RD2150'RECOVERY NOTE BY US POWER SQUADRON 1987 (CWE)
RD2150'MARK NOT FOUND.
RD2150
RD2150 STATION RECOVERY (1988)
RD2150
RD2150'RECOVERY NOTE BY US POWER SQUADRON 1988 (CWE)
RD2150'MARK NOT FOUND.
1 National Geodetic Survey, Retrieval Date = OCTOBER 14, 2014
RD2153 ***********************************************************************
RD2153 DESIGNATION - LARCH RESET
RD2153 PID - RD2153
RD2153 STATE/COUNTY- OR/MULTNOMAH
RD2153 COUNTRY - US
RD2153 USGS QUAD - MULTNOMAH FALLS (1994)
RD2153
RD2153 *CURRENT SURVEY CONTROL
RD2153 ______________________________________________________________________
RD2153* NAD 83(1991) POSITION- 45 31 57.92183(N) 122 05 16.07237(W) ADJUSTED
RD2153* NAVD 88 ORTHO HEIGHT - 1237.7 (meters) 4061. (feet) VERTCON
RD2153 ______________________________________________________________________
RD2153 GEOID HEIGHT - -21.89 (meters) GEOID12A
RD2153 LAPLACE CORR - 7.31 (seconds) DEFLEC12A
RD2153 HORZ ORDER - FIRST
RD2153
RD2153.The horizontal coordinates were established by classical geodetic methods
RD2153.and adjusted by the National Geodetic Survey in October 1991.
RD2153.
RD2153.The NAVD 88 height was computed by applying the VERTCON shift value to
RD2153.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
RD2153
RD2153.The Laplace correction was computed from DEFLEC12A derived deflections.
RD2153
RD2153. The following values were computed from the NAD 83(1991) position.
RD2153
RD2153; North East Units Scale Factor Converg.
RD2153;SPC OR N - 208,583.202 2,375,991.329 MT 0.99991474 -1 07 33.8
RD2153;SPC OR N - 684,328.09 7,795,247.14 iFT 0.99991474 -1 07 33.8
RD2153;SPC WA S - 23,414.843 375,971.021 MT 1.00008165 -1 09 12.1
RD2153;SPC WA S - 76,820.20 1,233,498.26 sFT 1.00008165 -1 09 12.1
RD2153;UTM 10 - 5,042,540.270 571,226.046 MT 0.99966237 +0 39 03.7
RD2153
RD2153! - Elev Factor x Scale Factor = Combined Factor
RD2153!SPC OR N - 0.99980943 x 0.99991474 = 0.99972419
RD2153!SPC WA S - 0.99980943 x 1.00008165 = 0.99989107
RD2153!UTM 10 - 0.99980943 x 0.99966237 = 0.99947187
RD2153
RD2153: Primary Azimuth Mark Grid Az
RD2153:SPC OR N - LARCH AZ MK 180 16 07.1
RD2153:SPC WA S - LARCH AZ MK 180 17 45.4
RD2153:UTM 10 - LARCH AZ MK 178 29 29.6
RD2153
RD2153|---------------------------------------------------------------------|
RD2153| PID Reference Object Distance Geod. Az |
RD2153| dddmmss.s |
RD2153| CE1912 LARCH RM 5 17.159 METERS 09730 |
RD2153| CE1910 LARCH RM 3 12.022 METERS 10919 |
RD2153| CE1911 LARCH RM 4 8.882 METERS 12929 |
RD2153| CE1913 LARCH RM 6 10.675 METERS 13509 |
RD2153| CE1909 LARCH AZ MK 1790833.3 |
RD2153| RD2150 LARCH MOUNTAIN LOOKOUT TOWER 263.669 METERS 21426 |
RD2153|---------------------------------------------------------------------|
RD2153
RD2153 SUPERSEDED SURVEY CONTROL
RD2153
RD2153 NAD 83(1986)- 45 31 57.93461(N) 122 05 16.07822(W) AD( ) 1
RD2153 NAD 27 - 45 31 58.50800(N) 122 05 11.77300(W) AD( ) 1
RD2153 USSD - 45 31 59.61500(N) 122 05 13.01800(W) AD( ) 3
RD2153
RD2153.Superseded values are not recommended for survey control.
RD2153
RD2153.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
RD2153.See file dsdata.txt to determine how the superseded data were derived.
RD2153
RD2153_U.S. NATIONAL GRID SPATIAL ADDRESS: 10TER7122642540(NAD 83)
RD2153
RD2153_MARKER: DO = NOT SPECIFIED OR SEE DESCRIPTION
RD2153_SETTING: 66 = SET IN ROCK OUTCROP
RD2153
RD2153 HISTORY - Date Condition Report By
RD2153 HISTORY - 1916 MONUMENTED CGS
RD2153 HISTORY - 1935 GOOD CGS
RD2153 HISTORY - 1938 SEE DESCRIPTION CGS
RD2153 HISTORY - 1942 GOOD USE
RD2153 HISTORY - 1947 GOOD CGS
RD2153 HISTORY - 1960 GOOD CGS
RD2153
RD2153 STATION DESCRIPTION
RD2153
RD2153'DESCRIBED BY COAST AND GEODETIC SURVEY 1916
RD2153'SE OF BRIDAL VEIL, A TOWN ON THE COLUMBIA RIVER, ON THE HIGHEST PEAK
RD2153'OF LARCH MOUNTAIN AND ON THE W POINT OF A SMALL ROCK LEDGE WHICH IS
RD2153'ON THE N END OF A SPUR FROM THE MAIN SUMMIT. THE LEDGE IS ABOUT 20
RD2153'FEET HIGHER THAN THE SPUR OF WHICH IT FORMS THE END, AND DESCENDS
RD2153'ABRUPTLY ON THE N IN A CLIFF ABOUT 100 FEET HIGH. IT CAN BE
RD2153'REACHED EITHER FROM BRIDAL VEIL OR LATOURELL VIA DONAHUES LOGGING
RD2153'CAMP. THERE IS A 3/8-INCH COPPER BOLT 3 INCHES LONG CEMENTED
RD2153'INTO A DRILL HOLE IN THE ROCK, AND DIRECTLY ABOVE THE BOLT IN THE
RD2153'SAME DRILL HOLE AN OLD TYPE BRONZE TABLET. A CROSS IN THE TOP OF
RD2153'THE COPPER BOLT AND ANOTHER IN THE POLISHED CENTER OF THE DISK
RD2153'MARK THE STATION.
RD2153'
RD2153'THE TWO REFERENCE MARKS ARE EACH MARKED BY A DRILL OR PUNCH HOLE IN
RD2153'THE TOP OF A 3/8-INCH COPPER BOLT 3 INCHES LONG, WHICH IS LEADED OR
RD2153'CEMENTED INTO A DRILL HOLE IN A ROCK WITH THE TOP OF THE BOLT FLUSH
RD2153'WITH THE SURFACE, AND ARE IN THE E SUMMIT OF THE LEDGE, ONE IN
RD2153'RATHER A LOW PLACE, 10.89 METERS (35.7 FEET) FROM THE STATION
RD2153'S 61 DEG 09 MIN E, AND THE OTHER NEAR THE E END OF THE
RD2153'SUMMIT, 15.01 METERS (49.2 FEET) FROM THE STATION S 72 DEG 58 MIN E.
RD2153
RD2153 STATION RECOVERY (1935)
RD2153
RD2153'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1935 (CP)
RD2153'TO REACH STATION, LEAVE COLUMBIA RIVER HIGHWAY (U.S. 30) AT ACUTE
RD2153'HIGHWAY INTERSECTION ABOUT 0.8 MILE WESTERLY FROM CROWN POINT,
RD2153'DRIVING E OVER SIGNED ROAD THROUGH PALMER AND CAMP A, ABOUT 11
RD2153'MILES TO END OF GRADE, FROM WHICH POINT IT IS ABOUT 1 MILE EASY
RD2153'TRAIL TO U.S.F.S. STEEL LOOKOUT TOWER. FROM TOWER PROCEED
RD2153'EASTWARD ALONG TRAIL ABOUT 0.2 MILE TO STATION. THERE IS A
RD2153'3/8-INCH COPPER BOLT 3 INCHES LONG CEMENTED INTO A DRILL HOLE IN
RD2153'THE ROCK, AND DIRECTLY ABOVE THE BOLT IN THE SAME DRILL HOLE AN
RD2153'OLD TYPE BRONZE TABLET. A CROSS IN THE TOP OF THE COPPER BOLT AND
RD2153'ANOTHER IN THE POLISHED CENTER OF THE DISK MARK THE STATION.
RD2153'
RD2153'REFERENCE MARKS, EACH MARKED BY A DRILL OR PUNCH HOLE IN THE TOP OF
RD2153'A 3/8-INCH COPPER BOLT 3 INCHES LONG, WHICH IS LEADED OR CEMENTED
RD2153'INTO A DRILL HOLE IN A ROCK WITH THE TOP OF THE BOLT FLUSH WITH THE
RD2153'SURFACE, ARE IN E SUMMIT OF LEDGE, ONE IN RATHER LOW PLACE, 10.89
RD2153'METERS (35.7 FEET) SE OF STATION, THE
RD2153'OTHER NEAR E END OF SUMMIT, 15.01 METERS (49.2 FEET) EASTERLY
RD2153'FROM STATION. IN 1936 IT WAS REPORTED
RD2153'THAT THE ROAD WOULD PROBABLY BE GRADED THROUGH TO LOOKOUT TOWER IN
RD2153'1937.
RD2153'
RD2153'AZIMUTH TO TIP OF MOUNT JEFFERSON OF 1903 SHOULD STILL BE A GOOD
RD2153'AZIMUTH MARK.
RD2153
RD2153 STATION RECOVERY (1938)
RD2153
RD2153'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1938 (WMS)
RD2153'ABOUT 8 MILES AIR LINE E OF CROWN POINT, ON THE COLUMBIA RIVER, ON
RD2153'THE HIGHEST PEAK OF LARCH MOUNTAIN ON THE W POINT OF THE SMALL ROCK
RD2153'LEDGE WHICH IS ON THE N END OF A SPUR FROM THE MAIN SUMMIT. THE
RD2153'LEDGE IS ABOUT 20 FEET HIGHER THAN THE SPUR OF WHICH IT FORMS THE
RD2153'END, AND DESCENDS ABRUPTLY ON THE N IN A CLIFF ABOUT 100 FEET
RD2153'HIGH.
RD2153'
RD2153'STATION MARK IS NOW A U.S. ARMY ENGINEERS TABLET, THE OLD U.S.C. AND
RD2153'G.S. DISK HAVING BEEN REMOVED BY SOMEONE VISITING THE STATION. THE
RD2153'U.S. ARMY ENGINEERS FOUND THE ORIGINAL DISK REMOVED, BUT THE DRILL
RD2153'HOLE UNHARMED, REPLACED IT BY THEIR OWN TABLET, STAMPED LARCH
RD2153'1903.
RD2153'
RD2153'TWO NEW REFERENCE MARKS WERE ESTABLISHED, THEIR NUMBERS BEING 3 AND
RD2153'4. THEY ARE MARKED BY STANDARD BRONZE DISKS WEDGED IN DRILL HOLES
RD2153'IN OUTCROPPING BEDROCK, AS DESCRIBED.
RD2153'
RD2153'THE OLD REFERENCE MARKS WERE NOT RECOVERED.
RD2153'
RD2153'TO REACH THE STATION FROM CROWN POINT, GO WESTERLY ALONG THE
RD2153'COLUMBIA RIVER HIGHWAY (U.S. 30) ABOUT 0.8 MILE TO THE ACUTE HIGHWAY
RD2153'INTERSECTION, TURN LEFT, SIGN READING LARCH MOUNTAIN ROAD (THERE IS
RD2153'A NEW HIGHWAY BEING BUILT ALONG THE RIVER WHICH WILL CUT OUT THE
RD2153'PRESENT HIGHWAY OVER CROWN POINT, AS THE MAIN-TRAVELED ROAD), GO
RD2153'EASTERLY ALONG THE LARCH MOUNTAIN ROAD, FOLLOWING SIGNS, ABOUT
RD2153'12 MILES TO THE PARK, AT THE SUMMIT OF LARCH MOUNTAIN AND THE
RD2153'END OF TRUCK TRAVEL. FROM HERE PROCEED N AND E ABOUT 300 YARDS
RD2153'TO THE HIGHEST POINT AND STATION.
RD2153
RD2153 STATION RECOVERY (1942)
RD2153
RD2153'RECOVERY NOTE BY US ENGINEERS 1942
RD2153'STATION VISITED IN SEPTEMBER 1942, BY DETACHMENT OF 29TH U.S.
RD2153'ENGINEERS, PORTLAND. FOLLOWING AMENDMENTS TO DESCRIPTION OF 1938
RD2153'ARE NECESSARY--
RD2153'
RD2153'STATION IS ON APEX OF MASSIVE ROCK ABOUT 8 FEET HIGH, NORTH OF
RD2153'OBSERVATION PLATFORM AT SUMMIT OF LARCH MOUNTAIN, ELEVATION 4058
RD2153'FEET. ROCK IS JUST ABOVE 100-FOOT CLIFF WHICH BREAKS OFF NORTH OF
RD2153'SUMMIT. TO REACH FROM CORBETT, COMMUNITY ON COLUMBIA RIVER
RD2153'HIGHWAY (U.S. 30), GO EAST ON HIGHWAY ABOUT 2 MILES, (.8 MILE WEST
RD2153'OF CROWN POINT), GO EASTWARD ON LARCH MOUNTAIN PAVED ROAD, FOLLOW
RD2153'SIGNS ABOUT 15 MILES TO LARGE PARKING AREA, THENCE BY TRAIL ABOUT
RD2153'.25 MILE NORTHEAST TO ROCKY OBSERVATION PLATFORM. LARCH
RD2153'MOUNTAIN LOOKOUT TOWER IS ABOUT .2 MILE WEST OF SUMMIT, AND IS
RD2153'NORTH OF TRAIL.
RD2153'
RD2153'STATION MARKED BY U.S.E. DISK SET IN DRILL HOLE ORIGINALLY USED BY
RD2153'U.S.C. AND G.S. STATION. STAMPED LARCH 1903. IN 1938 W.M. SCAIFE
RD2153'SET TWO REFERENCE MARKS IN ROCK, BUT THESE WERE NOT FOUND IN 1942
RD2153'AND APPARENTLY DESTROYED DURING CONSTRUCTION OF OBSERVATION
RD2153'PLATFORM. STATION MARK IS IN DOME-LIKE ROCK AND CARE SHOULD BE
RD2153'EXERCISED NOT TO SLIP OFF, ESPECIALLY TO NORTH.
RD2153
RD2153 STATION RECOVERY (1947)
RD2153
RD2153'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1947 (WRH)
RD2153'STATION IS LOCATED ABOUT 4.5 MILES SOUTHEAST OF BRIDAL VEIL, 4.0
RD2153'MILES SOUTH OF THE COLUMBIA RIVER, 10.0 MILES SOUTHWEST OF
RD2153'BONNEVILLE ON THE HIGHEST PART OF LARCH MOUNTAIN. IT IS ABOUT 1000
RD2153'FEET NORTHEAST OF LARCH MOUNTAIN LOOKOUT TOWER, AND ABOUT 35.0
RD2153'FEET NORTHWEST OF SCENIC VIEW POINT.
RD2153'
RD2153'STATION IS REACHED AS FOLLOWS--FORM CROWN POINT GO WEST ON U.S.
RD2153'HIGHWAY NO. 30 FOR 0.7 MILE TO ROAD ON THE LEFT (S) AT SIGN LARCH
RD2153'MTN-TO BROWDER ROAD. TURN LEFT, ON LARCH MOUNTAIN ROAD, AND GO
RD2153'13.4 MILES TO PARKING AREA NEAR SUMMIT OF LARCH MOUNTAIN. (AZIMUTH
RD2153'MARK IS IN ROCK WALL AROUND GARDEN, AT ENTRANCE TO PARKING AREA,
RD2153'32.5 FEET NORTHEAST OF SIGN LARCH MOUNTAIN RECREATIONAL AREA).
RD2153'TAKE ROAD AT THE NORTH END OF PARKING AREA AND GO UPHILL 0.1 MILE
RD2153'TO THE END OF TRUCK TRAVEL AT LARCH MOUNTAIN LOOKOUT TOWER. FROM
RD2153'HERE TAKE TRAIL, AT SIGN VIEW POINT 1000 FEET, AND GO NORTHEAST
RD2153'ABOUT 1000 FEET TO STATION ON THE HIGHEST POINT OF ROCKY PEAK.
RD2153'
RD2153'STATION IS A U.S. ARMY CORPS OF ENGINEERS BRONZE DISK CEMENTED IN A
RD2153'DRILL HOLE IN BEDROCK ON THE HIGHEST POINT OF ROCKY PEAK. IT IS
RD2153'ABOUT 35.0 FEET NORTHWEST OF VIEWPOINT.
RD2153'
RD2153'R.M. NO.5, STAMPED LARCH NO 5 1947 IS A STANDARD USC AND GS BRONZE
RD2153'DISK CEMENTED IN A DRILL HOLE IN BEDROCK. IT IS ABOUT 20.0 FEET
RD2153'LOWER THAN THE STATION AND ABOUT 3.0 FEET NORTHWEST OF THE
RD2153'SOUTHEASTERN CORNER OF VIEWING PLATFORM.
RD2153'
RD2153'R.M. NO. 6, STAMPED LARCH NO 6 1947 IS A STANDARD USC AND GS BRONZE
RD2153'DISK CEMENTED IN A DRILL HOLE IN THE BEDROCK THAT FORMS THE
RD2153'NORTHWESTERLY EDGE OF THE SCENIC VIEW PLATFORM. IT IS ABOUT 20
RD2153'FEET LOWER THAN THE STATION.
RD2153'
RD2153'AZIMUTH MARK, STAMPED LARCH 1903 1947 IS A STANDARD USC AND GS BRONZE
RD2153'DISK CEMENTED IN A DRILL HOLE IN ROCK WALL AROUND GARDEN IN PARKING
RD2153'AREA. IT IS 10.0 FEET WEST-SOUTHWEST OF THE CENTER LINE OF ROAD,
RD2153'55.0 FEET NORTH OF THE CENTER LINE OF Y, FORMED BY ROADS AROUND
RD2153'GARDEN, AND 32.5 FEET NORTH EAST OF SIGN LARCH MOUNTAIN
RD2153'RECREATIONAL AREA-MOUNT HOOD NATIONAL FOREST.
RD2153'
RD2153'STATION RECOVERED IN GOOD CONDITION.
RD2153
RD2153 STATION RECOVERY (1960)
RD2153
RD2153'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1960 (FN)
RD2153'STATION WAS RECOVERED, THE STATION MARK, REFERENCE MARK NUMBER 5
RD2153'AND THE AZIMUTH MARK WAS FOUND IN GOOD CONDITION, REFERENCE MARK
RD2153'NUMBER 6 WAS NOT FOUND.
RD2153'
RD2153'REACHED FROM CROWN POINT GO SOUTHWEST ON OLD U.S. HIGHWAY 30 (SENIC
RD2153'DRIVE) FOR 0.8 MILE, TURN LEFT AS PER SIGN LARCH MOUNTAIN FOLLOW
RD2153'THIS PAVED ROAD FOR 13.5 MILES TO THE PARKING AREA. THE AZIMUTH
RD2153'MARK IS CEMENTED INTO A DRILL HOLE IN THE ROCK CURB, NORTH OF THE
RD2153'WALL AROUND THE CENTER GARDEN. FROM THE PARKING AREA FOLLOW THE
RD2153'TRAIL AROUND THE SIDE OF THE HILL THAT IS TO THE EAST OF THE
RD2153'LOOKOUT TOWER, GO NORTHWEST THEN NORTHEAST FOR ABOUT 1000-FEET TO
RD2153'THE HIGHEST PART OF THE MOUNTAIN THAT IS JUST WEST OF THE
RD2153'VIEW POINT.
*** retrieval complete.
Elapsed Time = 00:00:03
See file dsdata.txt for more information about the datasheet.
PROGRAM = datasheet95, VERSION = 8.5
1 National Geodetic Survey, Retrieval Date = OCTOBER 14, 2014
RD2150 ***********************************************************************
RD2150 DESIGNATION - LARCH MOUNTAIN LOOKOUT TOWER
RD2150 PID - RD2150
RD2150 STATE/COUNTY- OR/MULTNOMAH
RD2150 COUNTRY - US
RD2150 USGS QUAD - MULTNOMAH FALLS (1994)
RD2150
RD2150 *CURRENT SURVEY CONTROL
RD2150 ______________________________________________________________________
RD2150* NAD 83(1991) POSITION- 45 31 50.87715(N) 122 05 22.94218(W) ADJUSTED
RD2150* NAVD 88 ORTHO HEIGHT - **(meters) **(feet)
RD2150 ______________________________________________________________________
RD2150 LAPLACE CORR - 8.01 (seconds) DEFLEC12A
RD2150 GEOID HEIGHT - -21.90 (meters) GEOID12A
RD2150 HORZ ORDER - THIRD
RD2150
RD2150.The horizontal coordinates were established by classical geodetic methods
RD2150.and adjusted by the National Geodetic Survey in October 1991.
RD2150.
RD2150.The Laplace correction was computed from DEFLEC12A derived deflections.
RD2150
RD2150. The following values were computed from the NAD 83(1991) position.
RD2150
RD2150; North East Units Scale Factor Converg.
RD2150;SPC OR N - 208,368.704 2,375,838.031 MT 0.99991452 -1 07 38.6
RD2150;SPC OR N - 683,624.36 7,794,744.20 iFT 0.99991452 -1 07 38.6
RD2150;SPC WA S - 23,200.383 375,817.595 MT 1.00008227 -1 09 17.1
RD2150;SPC WA S - 76,116.59 1,232,994.89 sFT 1.00008227 -1 09 17.1
RD2150;UTM 10 - 5,042,321.177 571,079.510 MT 0.99966212 +0 38 58.7
RD2150
RD2150 SUPERSEDED SURVEY CONTROL
RD2150
RD2150 NAD 83(1986)- 45 31 50.88988(N) 122 05 22.95052(W) AD( ) 3
RD2150 NAD 27 - 45 31 51.48000(N) 122 05 18.63100(W) AD( ) 3
RD2150
RD2150.Superseded values are not recommended for survey control.
RD2150
RD2150.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
RD2150.See file dsdata.txt to determine how the superseded data were derived.
RD2150
RD2150_U.S. NATIONAL GRID SPATIAL ADDRESS: 10TER7107942321(NAD 83)
RD2150
RD2150_MARKER: 57 = LOOKOUT TOWER
RD2150
RD2150 HISTORY - Date Condition Report By
RD2150 HISTORY - 1947 FIRST OBSERVED CGS
RD2150 HISTORY - 1987 MARK NOT FOUND USPSQD
RD2150 HISTORY - 1988 MARK NOT FOUND USPSQD
RD2150
RD2150 STATION DESCRIPTION
RD2150
RD2150'DESCRIBED BY COAST AND GEODETIC SURVEY 1947 (WRH)
RD2150'THE STATION IS ON THE SUMMIT OF LARCH MOUNTAIN, A HIGH WOODED
RD2150'PEAK, THAT IS ABOUT 10.0 MILES SOUTHWEST OF BONNEVILLE, 4.0
RD2150'MILES SOUTH OF THE COLUMBIA RIVER, AND ABOUT 4.5 MILES SOUTHEAST
RD2150'OF BRIDAL VEIL. THE LOOKOUT TOWER IS ABOUT 100 FEET IN HEIGHT,
RD2150'AND HAS A TWO STORY HOUSE WITH A POINTED PEAK ON ITS TOP.
RD2150
RD2150 STATION RECOVERY (1987)
RD2150
RD2150'RECOVERY NOTE BY US POWER SQUADRON 1987 (CWE)
RD2150'MARK NOT FOUND.
RD2150
RD2150 STATION RECOVERY (1988)
RD2150
RD2150'RECOVERY NOTE BY US POWER SQUADRON 1988 (CWE)
RD2150'MARK NOT FOUND.
1 National Geodetic Survey, Retrieval Date = OCTOBER 14, 2014
RD2153 ***********************************************************************
RD2153 DESIGNATION - LARCH RESET
RD2153 PID - RD2153
RD2153 STATE/COUNTY- OR/MULTNOMAH
RD2153 COUNTRY - US
RD2153 USGS QUAD - MULTNOMAH FALLS (1994)
RD2153
RD2153 *CURRENT SURVEY CONTROL
RD2153 ______________________________________________________________________
RD2153* NAD 83(1991) POSITION- 45 31 57.92183(N) 122 05 16.07237(W) ADJUSTED
RD2153* NAVD 88 ORTHO HEIGHT - 1237.7 (meters) 4061. (feet) VERTCON
RD2153 ______________________________________________________________________
RD2153 GEOID HEIGHT - -21.89 (meters) GEOID12A
RD2153 LAPLACE CORR - 7.31 (seconds) DEFLEC12A
RD2153 HORZ ORDER - FIRST
RD2153
RD2153.The horizontal coordinates were established by classical geodetic methods
RD2153.and adjusted by the National Geodetic Survey in October 1991.
RD2153.
RD2153.The NAVD 88 height was computed by applying the VERTCON shift value to
RD2153.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
RD2153
RD2153.The Laplace correction was computed from DEFLEC12A derived deflections.
RD2153
RD2153. The following values were computed from the NAD 83(1991) position.
RD2153
RD2153; North East Units Scale Factor Converg.
RD2153;SPC OR N - 208,583.202 2,375,991.329 MT 0.99991474 -1 07 33.8
RD2153;SPC OR N - 684,328.09 7,795,247.14 iFT 0.99991474 -1 07 33.8
RD2153;SPC WA S - 23,414.843 375,971.021 MT 1.00008165 -1 09 12.1
RD2153;SPC WA S - 76,820.20 1,233,498.26 sFT 1.00008165 -1 09 12.1
RD2153;UTM 10 - 5,042,540.270 571,226.046 MT 0.99966237 +0 39 03.7
RD2153
RD2153! - Elev Factor x Scale Factor = Combined Factor
RD2153!SPC OR N - 0.99980943 x 0.99991474 = 0.99972419
RD2153!SPC WA S - 0.99980943 x 1.00008165 = 0.99989107
RD2153!UTM 10 - 0.99980943 x 0.99966237 = 0.99947187
RD2153
RD2153: Primary Azimuth Mark Grid Az
RD2153:SPC OR N - LARCH AZ MK 180 16 07.1
RD2153:SPC WA S - LARCH AZ MK 180 17 45.4
RD2153:UTM 10 - LARCH AZ MK 178 29 29.6
RD2153
RD2153|---------------------------------------------------------------------|
RD2153| PID Reference Object Distance Geod. Az |
RD2153| dddmmss.s |
RD2153| CE1912 LARCH RM 5 17.159 METERS 09730 |
RD2153| CE1910 LARCH RM 3 12.022 METERS 10919 |
RD2153| CE1911 LARCH RM 4 8.882 METERS 12929 |
RD2153| CE1913 LARCH RM 6 10.675 METERS 13509 |
RD2153| CE1909 LARCH AZ MK 1790833.3 |
RD2153| RD2150 LARCH MOUNTAIN LOOKOUT TOWER 263.669 METERS 21426 |
RD2153|---------------------------------------------------------------------|
RD2153
RD2153 SUPERSEDED SURVEY CONTROL
RD2153
RD2153 NAD 83(1986)- 45 31 57.93461(N) 122 05 16.07822(W) AD( ) 1
RD2153 NAD 27 - 45 31 58.50800(N) 122 05 11.77300(W) AD( ) 1
RD2153 USSD - 45 31 59.61500(N) 122 05 13.01800(W) AD( ) 3
RD2153
RD2153.Superseded values are not recommended for survey control.
RD2153
RD2153.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
RD2153.See file dsdata.txt to determine how the superseded data were derived.
RD2153
RD2153_U.S. NATIONAL GRID SPATIAL ADDRESS: 10TER7122642540(NAD 83)
RD2153
RD2153_MARKER: DO = NOT SPECIFIED OR SEE DESCRIPTION
RD2153_SETTING: 66 = SET IN ROCK OUTCROP
RD2153
RD2153 HISTORY - Date Condition Report By
RD2153 HISTORY - 1916 MONUMENTED CGS
RD2153 HISTORY - 1935 GOOD CGS
RD2153 HISTORY - 1938 SEE DESCRIPTION CGS
RD2153 HISTORY - 1942 GOOD USE
RD2153 HISTORY - 1947 GOOD CGS
RD2153 HISTORY - 1960 GOOD CGS
RD2153
RD2153 STATION DESCRIPTION
RD2153
RD2153'DESCRIBED BY COAST AND GEODETIC SURVEY 1916
RD2153'SE OF BRIDAL VEIL, A TOWN ON THE COLUMBIA RIVER, ON THE HIGHEST PEAK
RD2153'OF LARCH MOUNTAIN AND ON THE W POINT OF A SMALL ROCK LEDGE WHICH IS
RD2153'ON THE N END OF A SPUR FROM THE MAIN SUMMIT. THE LEDGE IS ABOUT 20
RD2153'FEET HIGHER THAN THE SPUR OF WHICH IT FORMS THE END, AND DESCENDS
RD2153'ABRUPTLY ON THE N IN A CLIFF ABOUT 100 FEET HIGH. IT CAN BE
RD2153'REACHED EITHER FROM BRIDAL VEIL OR LATOURELL VIA DONAHUES LOGGING
RD2153'CAMP. THERE IS A 3/8-INCH COPPER BOLT 3 INCHES LONG CEMENTED
RD2153'INTO A DRILL HOLE IN THE ROCK, AND DIRECTLY ABOVE THE BOLT IN THE
RD2153'SAME DRILL HOLE AN OLD TYPE BRONZE TABLET. A CROSS IN THE TOP OF
RD2153'THE COPPER BOLT AND ANOTHER IN THE POLISHED CENTER OF THE DISK
RD2153'MARK THE STATION.
RD2153'
RD2153'THE TWO REFERENCE MARKS ARE EACH MARKED BY A DRILL OR PUNCH HOLE IN
RD2153'THE TOP OF A 3/8-INCH COPPER BOLT 3 INCHES LONG, WHICH IS LEADED OR
RD2153'CEMENTED INTO A DRILL HOLE IN A ROCK WITH THE TOP OF THE BOLT FLUSH
RD2153'WITH THE SURFACE, AND ARE IN THE E SUMMIT OF THE LEDGE, ONE IN
RD2153'RATHER A LOW PLACE, 10.89 METERS (35.7 FEET) FROM THE STATION
RD2153'S 61 DEG 09 MIN E, AND THE OTHER NEAR THE E END OF THE
RD2153'SUMMIT, 15.01 METERS (49.2 FEET) FROM THE STATION S 72 DEG 58 MIN E.
RD2153
RD2153 STATION RECOVERY (1935)
RD2153
RD2153'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1935 (CP)
RD2153'TO REACH STATION, LEAVE COLUMBIA RIVER HIGHWAY (U.S. 30) AT ACUTE
RD2153'HIGHWAY INTERSECTION ABOUT 0.8 MILE WESTERLY FROM CROWN POINT,
RD2153'DRIVING E OVER SIGNED ROAD THROUGH PALMER AND CAMP A, ABOUT 11
RD2153'MILES TO END OF GRADE, FROM WHICH POINT IT IS ABOUT 1 MILE EASY
RD2153'TRAIL TO U.S.F.S. STEEL LOOKOUT TOWER. FROM TOWER PROCEED
RD2153'EASTWARD ALONG TRAIL ABOUT 0.2 MILE TO STATION. THERE IS A
RD2153'3/8-INCH COPPER BOLT 3 INCHES LONG CEMENTED INTO A DRILL HOLE IN
RD2153'THE ROCK, AND DIRECTLY ABOVE THE BOLT IN THE SAME DRILL HOLE AN
RD2153'OLD TYPE BRONZE TABLET. A CROSS IN THE TOP OF THE COPPER BOLT AND
RD2153'ANOTHER IN THE POLISHED CENTER OF THE DISK MARK THE STATION.
RD2153'
RD2153'REFERENCE MARKS, EACH MARKED BY A DRILL OR PUNCH HOLE IN THE TOP OF
RD2153'A 3/8-INCH COPPER BOLT 3 INCHES LONG, WHICH IS LEADED OR CEMENTED
RD2153'INTO A DRILL HOLE IN A ROCK WITH THE TOP OF THE BOLT FLUSH WITH THE
RD2153'SURFACE, ARE IN E SUMMIT OF LEDGE, ONE IN RATHER LOW PLACE, 10.89
RD2153'METERS (35.7 FEET) SE OF STATION, THE
RD2153'OTHER NEAR E END OF SUMMIT, 15.01 METERS (49.2 FEET) EASTERLY
RD2153'FROM STATION. IN 1936 IT WAS REPORTED
RD2153'THAT THE ROAD WOULD PROBABLY BE GRADED THROUGH TO LOOKOUT TOWER IN
RD2153'1937.
RD2153'
RD2153'AZIMUTH TO TIP OF MOUNT JEFFERSON OF 1903 SHOULD STILL BE A GOOD
RD2153'AZIMUTH MARK.
RD2153
RD2153 STATION RECOVERY (1938)
RD2153
RD2153'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1938 (WMS)
RD2153'ABOUT 8 MILES AIR LINE E OF CROWN POINT, ON THE COLUMBIA RIVER, ON
RD2153'THE HIGHEST PEAK OF LARCH MOUNTAIN ON THE W POINT OF THE SMALL ROCK
RD2153'LEDGE WHICH IS ON THE N END OF A SPUR FROM THE MAIN SUMMIT. THE
RD2153'LEDGE IS ABOUT 20 FEET HIGHER THAN THE SPUR OF WHICH IT FORMS THE
RD2153'END, AND DESCENDS ABRUPTLY ON THE N IN A CLIFF ABOUT 100 FEET
RD2153'HIGH.
RD2153'
RD2153'STATION MARK IS NOW A U.S. ARMY ENGINEERS TABLET, THE OLD U.S.C. AND
RD2153'G.S. DISK HAVING BEEN REMOVED BY SOMEONE VISITING THE STATION. THE
RD2153'U.S. ARMY ENGINEERS FOUND THE ORIGINAL DISK REMOVED, BUT THE DRILL
RD2153'HOLE UNHARMED, REPLACED IT BY THEIR OWN TABLET, STAMPED LARCH
RD2153'1903.
RD2153'
RD2153'TWO NEW REFERENCE MARKS WERE ESTABLISHED, THEIR NUMBERS BEING 3 AND
RD2153'4. THEY ARE MARKED BY STANDARD BRONZE DISKS WEDGED IN DRILL HOLES
RD2153'IN OUTCROPPING BEDROCK, AS DESCRIBED.
RD2153'
RD2153'THE OLD REFERENCE MARKS WERE NOT RECOVERED.
RD2153'
RD2153'TO REACH THE STATION FROM CROWN POINT, GO WESTERLY ALONG THE
RD2153'COLUMBIA RIVER HIGHWAY (U.S. 30) ABOUT 0.8 MILE TO THE ACUTE HIGHWAY
RD2153'INTERSECTION, TURN LEFT, SIGN READING LARCH MOUNTAIN ROAD (THERE IS
RD2153'A NEW HIGHWAY BEING BUILT ALONG THE RIVER WHICH WILL CUT OUT THE
RD2153'PRESENT HIGHWAY OVER CROWN POINT, AS THE MAIN-TRAVELED ROAD), GO
RD2153'EASTERLY ALONG THE LARCH MOUNTAIN ROAD, FOLLOWING SIGNS, ABOUT
RD2153'12 MILES TO THE PARK, AT THE SUMMIT OF LARCH MOUNTAIN AND THE
RD2153'END OF TRUCK TRAVEL. FROM HERE PROCEED N AND E ABOUT 300 YARDS
RD2153'TO THE HIGHEST POINT AND STATION.
RD2153
RD2153 STATION RECOVERY (1942)
RD2153
RD2153'RECOVERY NOTE BY US ENGINEERS 1942
RD2153'STATION VISITED IN SEPTEMBER 1942, BY DETACHMENT OF 29TH U.S.
RD2153'ENGINEERS, PORTLAND. FOLLOWING AMENDMENTS TO DESCRIPTION OF 1938
RD2153'ARE NECESSARY--
RD2153'
RD2153'STATION IS ON APEX OF MASSIVE ROCK ABOUT 8 FEET HIGH, NORTH OF
RD2153'OBSERVATION PLATFORM AT SUMMIT OF LARCH MOUNTAIN, ELEVATION 4058
RD2153'FEET. ROCK IS JUST ABOVE 100-FOOT CLIFF WHICH BREAKS OFF NORTH OF
RD2153'SUMMIT. TO REACH FROM CORBETT, COMMUNITY ON COLUMBIA RIVER
RD2153'HIGHWAY (U.S. 30), GO EAST ON HIGHWAY ABOUT 2 MILES, (.8 MILE WEST
RD2153'OF CROWN POINT), GO EASTWARD ON LARCH MOUNTAIN PAVED ROAD, FOLLOW
RD2153'SIGNS ABOUT 15 MILES TO LARGE PARKING AREA, THENCE BY TRAIL ABOUT
RD2153'.25 MILE NORTHEAST TO ROCKY OBSERVATION PLATFORM. LARCH
RD2153'MOUNTAIN LOOKOUT TOWER IS ABOUT .2 MILE WEST OF SUMMIT, AND IS
RD2153'NORTH OF TRAIL.
RD2153'
RD2153'STATION MARKED BY U.S.E. DISK SET IN DRILL HOLE ORIGINALLY USED BY
RD2153'U.S.C. AND G.S. STATION. STAMPED LARCH 1903. IN 1938 W.M. SCAIFE
RD2153'SET TWO REFERENCE MARKS IN ROCK, BUT THESE WERE NOT FOUND IN 1942
RD2153'AND APPARENTLY DESTROYED DURING CONSTRUCTION OF OBSERVATION
RD2153'PLATFORM. STATION MARK IS IN DOME-LIKE ROCK AND CARE SHOULD BE
RD2153'EXERCISED NOT TO SLIP OFF, ESPECIALLY TO NORTH.
RD2153
RD2153 STATION RECOVERY (1947)
RD2153
RD2153'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1947 (WRH)
RD2153'STATION IS LOCATED ABOUT 4.5 MILES SOUTHEAST OF BRIDAL VEIL, 4.0
RD2153'MILES SOUTH OF THE COLUMBIA RIVER, 10.0 MILES SOUTHWEST OF
RD2153'BONNEVILLE ON THE HIGHEST PART OF LARCH MOUNTAIN. IT IS ABOUT 1000
RD2153'FEET NORTHEAST OF LARCH MOUNTAIN LOOKOUT TOWER, AND ABOUT 35.0
RD2153'FEET NORTHWEST OF SCENIC VIEW POINT.
RD2153'
RD2153'STATION IS REACHED AS FOLLOWS--FORM CROWN POINT GO WEST ON U.S.
RD2153'HIGHWAY NO. 30 FOR 0.7 MILE TO ROAD ON THE LEFT (S) AT SIGN LARCH
RD2153'MTN-TO BROWDER ROAD. TURN LEFT, ON LARCH MOUNTAIN ROAD, AND GO
RD2153'13.4 MILES TO PARKING AREA NEAR SUMMIT OF LARCH MOUNTAIN. (AZIMUTH
RD2153'MARK IS IN ROCK WALL AROUND GARDEN, AT ENTRANCE TO PARKING AREA,
RD2153'32.5 FEET NORTHEAST OF SIGN LARCH MOUNTAIN RECREATIONAL AREA).
RD2153'TAKE ROAD AT THE NORTH END OF PARKING AREA AND GO UPHILL 0.1 MILE
RD2153'TO THE END OF TRUCK TRAVEL AT LARCH MOUNTAIN LOOKOUT TOWER. FROM
RD2153'HERE TAKE TRAIL, AT SIGN VIEW POINT 1000 FEET, AND GO NORTHEAST
RD2153'ABOUT 1000 FEET TO STATION ON THE HIGHEST POINT OF ROCKY PEAK.
RD2153'
RD2153'STATION IS A U.S. ARMY CORPS OF ENGINEERS BRONZE DISK CEMENTED IN A
RD2153'DRILL HOLE IN BEDROCK ON THE HIGHEST POINT OF ROCKY PEAK. IT IS
RD2153'ABOUT 35.0 FEET NORTHWEST OF VIEWPOINT.
RD2153'
RD2153'R.M. NO.5, STAMPED LARCH NO 5 1947 IS A STANDARD USC AND GS BRONZE
RD2153'DISK CEMENTED IN A DRILL HOLE IN BEDROCK. IT IS ABOUT 20.0 FEET
RD2153'LOWER THAN THE STATION AND ABOUT 3.0 FEET NORTHWEST OF THE
RD2153'SOUTHEASTERN CORNER OF VIEWING PLATFORM.
RD2153'
RD2153'R.M. NO. 6, STAMPED LARCH NO 6 1947 IS A STANDARD USC AND GS BRONZE
RD2153'DISK CEMENTED IN A DRILL HOLE IN THE BEDROCK THAT FORMS THE
RD2153'NORTHWESTERLY EDGE OF THE SCENIC VIEW PLATFORM. IT IS ABOUT 20
RD2153'FEET LOWER THAN THE STATION.
RD2153'
RD2153'AZIMUTH MARK, STAMPED LARCH 1903 1947 IS A STANDARD USC AND GS BRONZE
RD2153'DISK CEMENTED IN A DRILL HOLE IN ROCK WALL AROUND GARDEN IN PARKING
RD2153'AREA. IT IS 10.0 FEET WEST-SOUTHWEST OF THE CENTER LINE OF ROAD,
RD2153'55.0 FEET NORTH OF THE CENTER LINE OF Y, FORMED BY ROADS AROUND
RD2153'GARDEN, AND 32.5 FEET NORTH EAST OF SIGN LARCH MOUNTAIN
RD2153'RECREATIONAL AREA-MOUNT HOOD NATIONAL FOREST.
RD2153'
RD2153'STATION RECOVERED IN GOOD CONDITION.
RD2153
RD2153 STATION RECOVERY (1960)
RD2153
RD2153'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1960 (FN)
RD2153'STATION WAS RECOVERED, THE STATION MARK, REFERENCE MARK NUMBER 5
RD2153'AND THE AZIMUTH MARK WAS FOUND IN GOOD CONDITION, REFERENCE MARK
RD2153'NUMBER 6 WAS NOT FOUND.
RD2153'
RD2153'REACHED FROM CROWN POINT GO SOUTHWEST ON OLD U.S. HIGHWAY 30 (SENIC
RD2153'DRIVE) FOR 0.8 MILE, TURN LEFT AS PER SIGN LARCH MOUNTAIN FOLLOW
RD2153'THIS PAVED ROAD FOR 13.5 MILES TO THE PARKING AREA. THE AZIMUTH
RD2153'MARK IS CEMENTED INTO A DRILL HOLE IN THE ROCK CURB, NORTH OF THE
RD2153'WALL AROUND THE CENTER GARDEN. FROM THE PARKING AREA FOLLOW THE
RD2153'TRAIL AROUND THE SIDE OF THE HILL THAT IS TO THE EAST OF THE
RD2153'LOOKOUT TOWER, GO NORTHWEST THEN NORTHEAST FOR ABOUT 1000-FEET TO
RD2153'THE HIGHEST PART OF THE MOUNTAIN THAT IS JUST WEST OF THE
RD2153'VIEW POINT.
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