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Details for Benchmark: RD3836

N 45° 54.627 W 122° 50.059 (NAD 83)

Altitude: 433

Coordinates may not be exact. Altitude is SCALED and location is ADJUSTED. (more info)

Location:
In COLUMBIA county, OR View Original Datasheet
Designation:
MAPLE HILL
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:

Reference Points

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Recovered MAPLE HILL 1878 in good condition. It is one foot NNE of a small witness post. I found a detached witness sign and nailed it to an alder tree about three feet NE of the Mark. The blazed trees and other references are missing. MAPLE HILL 2 and its two RMs are in place but heavy brush prevents them from being good Reference Marks for this one. From the town of Columbia City, follow A Street west and south to a power line service road and a locked gate. (N 45° 53.400’, W 122° 49.571’) It is an easy hike north under the power lines for about 1.8 miles. Then bushwhack east through heavy undergrowth that is abundant with blackberries and stinging nettle. You will need a machete. The eastern slope of the hill is less encumbered with vegetation but very steep.
MS

[Photos:]
photoMAPLE HILL 1878
photoMAPLE HILL 1878 Monument
6 X 8
photoMAPLE HILL 1878 eye level
photoMAPLE HILL 1878 witness sign
photoMAPLE HILL 1878 new witness tree

Documented History (by the NGS)

01/01/1878 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1878 (CR) STATION IS ABOUT 1-1/2 MILES BELOW COLUMBIA CITY, NEARLY OPPOSITE THE HEAD OF DEER ISLAND, ON THE SUMMIT OF A WOODED HILL ABOUT 460 FEET ABOVE THE RIVER LEVEL. THE STATION IS MARKED 2-1/2 FEET UNDERGROUND BY A DRILL HOLE FILLED WITH LEAD IN A FLAT-TOPPED STONE, AND AT THE SURFACE BY A SIMILAR MARK IN A STONE PROJECTING 6 INCHES ABOVE THE SURFACE. THREE STAKES WERE SET AS FOLLOWS--N 1.79 METERS, S AND E EACH 1.83 METERS. THERE ARE THREE COPPER TACKS IN A TRIANGULAR BLAZE ON A FIR TREE BEARING S 15 DEG W MAGNETIC, DISTANT 2.35 METERS.
01/01/1934 by CGS (MONUMENTED)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1934 (LCJ) STATION NOT RECOVERED. STATION SITE WAS FOUND BUT NO TRACE OF ANY MARKS. THE SPACE WAS HEAVILY OVERGROWN WITH SECOND-GROWTH TIMBER, ALSO HAD BEEN BURNED OVER. THE STATION WAS ALSO SEARCHED FOR BY A PARTY OF THREE MEMBERS OF THE TRIANGULATION PARTY, WITHOUT RESULT. IT IS HIGHLY POSSIBLE THAT THE FALLING OF TREE COULD EASILY TEAR THE SURFACE MARK OUT.
01/01/1937 by CGS (MONUMENTED)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1937 (RWK) STATION RECOVERED AS DESCRIBED. A NEW STATION, MAPLE HILL 2 1937, WAS ESTABLISHED IN THIS VICINITY. IT IS 43.108 METERS DISTANT IN AZIMUTH 251 DEG 11 MIN 24 SEC.
01/01/1952 by CGS (MONUMENTED)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1952 (GEB) THE STATION WAS RECOVERED AS DESCRIBED BY R.W.K. IN 1937. THE STATION IS ABOUT 1-1/2 MILES NORTHWEST OF COLUMBIA CITY, 1.6 MILES SOUTHEAST OF THE STORE AT DEER ISLAND, AND 0.4 MILE SOUTHWEST OF U.S. HIGHWAY 30. IT IS ABOUT 50 METERS SOUTHWEST OF THE BROW OF A TIMBERED HILL THAT EXTENDS NORTHEAST FROM THE MAIN RIDGE. THE HILL IS ABOUT 420 FEET IN ELEVATION, AND FROM THE HIGHWAY APPEARS TO BE ABOUT 3/4 THE ELEVATION OF THE SKYLINE. LOOKING WEST FROM THE HIGHWAY THE HILL IS NOT EASILY DISCERNIBLE, BEING BACKGROUNDED BY THE HIGHER RIDGE TO THE SOUTHWEST. THE STATION MARK IS A LEAD PLUG IN A DRILL HOLE IN A 6-INCH BY 8-INCH BOULDER THAT IS FLUSH WITH THE SURFACE OF THE GROUND. IT IS 43.108 METERS SOUTHWEST OF STATION MAPLE HILL 2, 12.9 METERS NORTHWEST OF THE SOUTHERLY OF TWO 18-INCH FIRS, 11.5 METERS WEST-NORTHWEST OF THE NORTHERLY ONE, 11.3 METERS NORTHEAST OF A 2-FOOT FIR WITH A LARGE BLAZE AT ITS BASE, AND 2-1/2 FEET NORTH OF A CLUMP OF ALDER. TO REACH THE STATION FROM THE CITY LIMIT SIGN AT THE NORTH EDGE OF COLUMBIA CITY GO NORTHERLY ON U.S. HIGHWAY 30 FOR 1.55 MILES TO THE FARM OF F. TRACHSEL ON THE LEFT. TURN LEFT INTO THE TRACHSEL FARM YARD, WHICH IS THE END OF TRUCK TRAVEL. FROM THE FARM YARD PACK SOUTHWESTERLY ABOUT 0.4 MILE TO THE TOP OF THE HILL AND THE STATION.
01/01/1980 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1980 (CLN) THE STATION WAS RECOVERED IN GOOD CONDITION. IT IS LOCATED ABOUT 1-1/2 MILES NW OF COLUMBIA CITY, 1.6 MILES SE OF DEER ISLAND AND ABOUT 1/2 MILE SOUTHWEST OF HIGHWAY 30 TO REACH THE STATION FROM THE COLUMBIA CITY POST OFFICE, GO N ON 2ND ST FOR 0.2 MILE TO E ST, TURN LEFT AND GO WEST ON E ST FOR 0.1 MILE TO U.S. HIGHWAY 30, TURN RIGHT ON HIGHWAY 30 FOR 1.2 MILE TO WHERE ROAD CROSSES RAILROAD TRACKS AND END OF TRUCK TRAVEL. PACK WEST ABOUT 0.2 MILE ALONG RR TRACKS TO WHERE THERE IS A GATE INTO THE REICHHOLD CHEMICAL CORPORATION PLANT. CONTINUE ON OUTSIDE OF FENCE ABOUT 100 METERS THEN PACK SOUTHERLY UP HILL TO TOE OF RIDGE AND STATION. THE STATION IS A LEAD PLUG IN A DRILL HOLE IN A BOULDER AND IS FLUSH WITH THE GROUND. IT IS 11.65 METERS NW OF A 0.5 M IN DIAMETER TREE WITH A DOUBLE BLAZE AND A SECTION LOCATER SIGN ON IT, AND 0.45 METER SOUTH OF A 0.3 METER IN DIAMETER ALDER TREE.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in October 1991.
  • The orthometric height was scaled from a topographic map.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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