Details for Benchmark: JV2026
N 39° 57.000 W 077° 25.067 (NAD 83)
Coordinates may not be exact. Altitude is ADJUSTED and location is SCALED. (more info)
- In ADAMS county, PA View Original Datasheet
- B 164
- Marker Type:
- bench mark disk
- set into the top of a round concrete monument
- May hold, but of type commonly subject to surface motion.
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||Ernmark found JV2026
N 39°57.008 W 077°25.102
Recovered in good condition - this one is just SW of a non-paved driveway leading back to a cabin..
[Photos:]B 164 (JV2026) disk - Adams County, PA
B 164 (JV2026) setting
B 164 (JV2026) - area looking S
||catfishcrusader found JV2026
I knew the approximate location of this
benchmark, but was unable to spot it until
some of the snow melted
||gnbrotz found jv2026
Originally looked for this one on 8/17 without sucess. Returned today after some more study and recovered it quite easily. The witness post is not there.
[Photos:]JV2026 disk, located NE of Fayetteville, PA
||Ghosthunter found JV2026
After two unsuccessful attempts, with the help of fellow benchmarkers, and after reworking the available information on this benchmark, found this benchmark with very little difficulty. It’s in terrific shape, as describe, and exactly where it’s supposed to be.
Documented History (by the NGS)
|01/01/1942 by CGS (MONUMENTED)
|DESCRIBED BY COAST AND GEODETIC SURVEY 1942
8.9 MI SW FROM PINE GROVE FURNACE. IN ADAMS COUNTY, 8.9 MILES SOUTHWEST ALONG STATE HIGHWAY 233 FROM THE POST OFFICE AT PINE GROVE FURNACE, CUMBERLAND COUNTY, 91 FEET NORTHEAST OF THE EAST CORNER OF AN OLD FOUNDATION OF A BUILDING WHICH HAS BEEN TORN DOWN, 41 FEET NORTHWEST OF THE CENTERLINE OF THE HIGHWAY 29 FEET NORTHEAST OF A 15-INCH OAK WITH A TRIANGULAR BLAZE, 24 FEET SOUTHEAST OF A 10-INCH OAK WITH A TRIANGULAR BLAZE, AND 1 FOOT NORTHWEST OF A WHITE WOODEN WITNESS POST. A STANDARD DISK, STAMPED B 164 1942 AND SET IN THE TOP OF A CONCRETE POST.
- The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
- The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991.
- The geoid height was determined by GEOID99.
- The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.).
- The modeled gravity was interpolated from observed gravity values.