GT2152 "T1161 RESET 1984"

My Wife and I were able to spend a few days in and around Lone Pine and Independence, exploring the Alabama Hills, the Movie Museum, and Manzanar. Found some geocaches and benchmarks while we were there too, including this one.

Located about five and a half miles west of the City of Lone Pine, Inyo County, California, this NGS mark lies on the north side of the Whitney Portal Road in the Alabama Hills. The NGS mark stamped "B44 1925" was found at 14:00, 08 April 2017 as described and in generally good condition. Go to description is adequate to find the mark.

Published NAD83 coordinates are located about 174 feet southeasterly of the found WGS84 coordinates. WGS84 coordinates for the mark found by 4 minute occupation with 7 strong satellites and 1 WAAS satellite.

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Found Details for Benchmark: GT2152
N 36° 35.726 W 118° 09.498 (WGS 84)
Altitude: 5314
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Published Details for Benchmark: GT2152
N 36° 35.700 W 118° 09.483 (NAD 83)
Altitude: 5318.8

Coordinates may not be exact. Altitude is RESET and location is SCALED.

Location: In Inyo County, CA
Designation: T 1161 RESET
Marker Type: vertical control disk
Setting: in a boulder
Stability: May hold, but of type commonly subject to surface motion.
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Documented History (by the NGS)
01 Jan 84 by NGS (MONUMENTED)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1984 8.9 KM (5.55 MI) WEST ALONG WHITNEY-PORTAL ROAD FROM ITS JUNCTION WITH US HIGHWAY 395, 0.2 KM (0.10 MI) EAST OF RANGER STATION ROAD, 33.2 METERS (108.9 FT) NORTH OF WHITNEY PORTAL ROAD, 1.52 METERS (4.99 FT) WEST OF A METAL WITNESS POST, 0.61 METERS (2.00 FT) NORTH OF A CARSONITE WITNESS POST, IN THE TOP OF A 4 FEET (1.2 M) BY 7 FEET (2.1 M) GRANITE BOULDER THAT PROJECTS ABOUT 1.5 FEET.

GT2152 "T1161 RESET" 1984 - Benchmark detail.
GT2152 "T1161 RESET" 1984 - Benchmark and GPSr.
GT2152 "T1161 RESET" 1984 - Benchmark setting in a granite rock along Whitney Portal Road, between the Alabama Hills, to the east, and Mt. Whitney, to the west. View northerly.
GT2152 "T1161 RESET" 1984 - Benchmark setting in a granite rock along Whitney Portal Road, between the Alabama Hills, to the east, and Mt. Whitney, to the west. View easterly toward the Alabama Hills.
GT2152 "T1161 RESET" 1984 - Benchmark setting in a granite rock along Whitney Portal Road, between the Alabama Hills, to the east, and Mt. Whitney, to the west. View easterly toward Owens Valley.
GT2152 "T1161 RESET" 1984 - Benchmark setting in a granite rock along Whitney Portal Road, between the Alabama Hills, to the east, and Mt. Whitney, to the west. View southerly across Whitney Portal Road toward the Sierra Nevada Mountains.
GT2152 "T1161 RESET" 1984 - Benchmark setting in a granite rock along Whitney Portal Road, between the Alabama Hills, to the east, and Mt. Whitney, to the west. View westerly toward Mt. Whitney.
GT2152 "T1161 RESET" 1984 - The well weathered witness post and sign next to the mark.
GT2152 "T1161 RESET" 1984 - Benchmark coordinates.

Control Text
  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The orthometric height was computed from unverified reset data. No vertical observational check was made to the station.
  • The geoid height was determined by GEOID99.

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