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Details for Benchmark: SX1145

N 47° 26.419 W 120° 36.513 (NAD 83)

Altitude: 4770

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

Location:
In CHELAN county, WA View Original Datasheet
Designation:
TIPTOP
Marker Type:
triangulation station disk
Setting:
set into the top of a round concrete monument
Stability:

Reference Points

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The disk is dated 1991 by the Forest Service. Found nearby geocache.

Documented History (by the NGS)

01/01/1941 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1941 (JCS) THE STATION IS LOCATED ON TIPTOP MOUNTAIN, LYING ABOUT 14 MILES W OF WENATCHEE, 9 MILES SW OF CASHMERE, AND ABOUT 2-1/2 MILES E OF U.S. HIGHWAY 10. IT IS ON THE HIGHEST POINT IN THE VICINITY. THE STATION MARK IS 15 FEET NE OF THE NE CORNER OF THE LOOKOUT TOWER AND PROJECTS 3 INCHES. IT IS STAMPED TIPTOP 1941. SURFACE, UNDERGROUND, AND REFERENCE MARKS ARE STANDARD BRONZE DISKS SET IN CONCRETE. AZIMUTH MARK IS A STANDARD BRONZE DISK WEDGED IN A DRILL HOLE IN OUTCROPPING BEDROCK. REFERENCE MARK NO.1 IS 3 FEET LOWER THAN THE STATION MARK, PROJECTS 6 INCHES, AND IS STAMPED TIPTOP NO.1 1941. REFERENCE MARK NO.2 IS 1 FOOT HIGHER THAN THE STATION MARK, PROJECTS 8 INCHES, AND IS STAMPED TIPTOP NO.2 1941. THE AZIMUTH MARK IS ABOUT 100 YARDS NE OF ROAD TO STATION AND SIGN RUBY CREEK TRAIL ON TOP OF HILL, STAMPED TIPTOP 1941. TO REACH FROM WENATCHEE, GO N ON U.S. HIGHWAY 10 TO CASHMERE, THENCE CONTINUED W ON U.S. HIGHWAY 10 FOR 9.9 MILES TO DRYDEN. FROM DRYDEN, CONTINUE NW ON U.S. HIGHWAY 10 FOR 1.7 MILES TO JUNCTION OF U.S. HIGHWAY 97. TURN LEFT ONTO U.S. HIGHWAY 97, GO 4.8 MILES TO A POINT WHERE HIGHWAY CROSSES THE PESHASTIN RIVER. CONTINUE S ON THE HIGHWAY 0.9 MILE. TURN LEFT OFF HIGHWAY AS PER SIGN CAMAS CR. RD. AND FOLLOW THE MAIN-TRAVELED ROAD 1.2 MILES. TAKE RIGHT FORK AND GO 0.4 MILE TO A FORKS. TAKE RIGHT FORK AS PER SIGN TIPTOP L.O. 6, DEET PARK 4 AND FOLLOW THE MAIN-TRAVELED ROAD 1.1 MILES TO A FORKS. TAKE THE LEFT FORK AND FOLLOW THE MAIN ROAD KEEPING ALL LEFT FORKS FOR 2.1 MILES TO SIGN ON RIGHT RUBY CREEK TRAIL. THE AZIMUTH MARK IS ABOUT 100 YARDS UP THE HILL TO NE OF THIS SIGN. CONTINUE ON THE MAIN-TRAVELED ROAD FOR 1.9 MILES TO TIPTOP LOOKOUT TOWER AND THE STATION. A DRIVE STATION. A 4-FOOT STAND WAS USED.
10/15/1987 by USGS (POOR)
RECOVERY NOTE BY US GEOLOGICAL SURVEY 1987 (DBK) MARK RECOVERED IN POOR CONDITION.

Control Text

  • 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.

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