Details for Benchmark: AH6093
N 47° 57.302 W 123° 15.575 (NAD 83)
Coordinates may not be exact. Altitude is SCALED and location is ADJUSTED. (more info)
- In CLALLAM county, WA View Original Datasheet
- BLUE MTN RESET
- Marker Type:
- horizontal control disk
- in rock outcrop
- Most reliable and expected to hold position/elevation well.
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Documented History (by the NGS)
|1/1/1981 by NGS (MONUMENTED)
|DESCRIBED BY NATIONAL GEODETIC SURVEY 1981 (DAW)
THE STATION IS LOCATED ABOUT 22.5 KM (14.00 MI) SOUTHEAST OF PORT ANGLES, 17.7 KM (11.00 MI) SOUTHWEST OF SEQUIM AND AT THE SUMMIT OF A PEAK LOCALLY KNOWN AS BLUE MOUNTAIN. THE PROPERTY IS UNDER THE CONTROL OF THE NATIONAL PARK SERVICE. TO REACH FROM THE INTERSECTION OF EAST FIRST STREET AND PENN STREET IN PORT ANGLES, GO EAST ON US HIGHWAY 101 FOR 4.35 KM (2.70 MI) TO THE BRIDGE OVER MORSE CREEK. CONTINUE EAST ON US HIGHWAY 101 FOR 1.13 KM (0.70 MI) TO A CROSS ROAD AND A PARK AND RIDE LOT ON THE RIGHT. TURN RIGHT AND GO SOUTH ON DEER PARK ROAD FOR 8.85 KM (5.50 MI) TO THE END OF THE SURFACED ROAD. CONTINUE AHEAD ON THE GRAVELED ROAD FOR 5.15 KM (3.20 MI) TO A GATE AT THE PARK ENTRANCE. CONTINUE AHEAD ON THE GOOD GRAVELED ROAD FOR 12.23 KM (7.60 MI) TO A SIDE ROAD RIGHT. KEEP AHEAD ON THE MAIN TRAVELED ROAD UPHILL FOR 0.16 KM (0.10 MI) TO A CROSS ROAD AND A SIGN, BLUE MTN VIEW. TURN LEFT ON THE VIEW ROAD AND CONTINUE UPHILL FOR 1.29 KM (0.80 MI) TO A BARRICADE ACROSS THE ROAD AND THE END OF TRUCK TRAVEL. WALK UPHILL ON THE OLD ROAD FOR ABOUT 5 MINUTES TO THE END OF THE TRAIL AND THE STATION AT THE SUMMIT. THE MARK IS SET IN THE TOP OF A MASS OF CONCRETE THAT HAS BEEN POURED INTO A DEPRESSION IN THE CRUMBLING BEDROCK. IT IS 17.253 M (56.604 FT) NORTH OF REFERENCE MARK 1, 5.130 M (16.831 FT) SOUTH-SOUTHEAST OF REFERENCE MARK 3, 24.38 M (79.99 FT) SOUTH OF THE HIGHEST POINT OF THE SUMMIT AND 3.1 M (10.2 FT) WEST OF THE EDGE OF THE CLIFF.
- The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in December 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.