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Details for Benchmark: FS0262

N 35° 31.983 W 115° 19.750 (NAD 83)

Altitude: 2776.5

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

Location:
In SAN BERNARDINO county, CA View Original Datasheet
Designation:
E 328
Marker Type:
bench mark disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

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Found with we4fullers & Mineral54 at 10:33.

[Photos:]
photoE328 -1935

Benchmark hunting and caching today with 2nd1of3 and we4fullers.

[Photos:]
photoE 328
photo

Out grabbing come benchmarks with 2ns1of3 and Mineral54 today.

[Photos:]
photo
photo

Recovered in good condition as described.

[Photos:]
photoE 328 on San Bernardino County, CA
photoE 328 looking northwest
N 35° 31.986 W 115° 19.731

Benchmark E328 recovered in good condition. It was found as described with the following exception:

The 4th pole northwest of MP 283 has been cut down. (The poles on the west side of the railroad tracks have been cut down and replaced by poles on the east side of the tracks.) This mark is now approximately 140 feet west of the 5th pole northwest of MP 283.

[Photos:]
photoBenchmark E328 w/GPSr
photoBenchmark E328
photoBenchmark E328 from Eye Level
photoNorthwest at Benchmark E328
photoSouthwest at Benchmark E328
Note the original witness post which has been knocked over and is on its side.

Can not find

Documented History (by the NGS)

01/01/1935 by CGS (MONUMENTED)
01/01/1949 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1949 5.6 MI NW FROM NIPTON. 5.6 MILES NORTHWEST ALONG THE UNION PACIFIC RAILROAD FROM THE STATION AT NIPTON, 50 FEET WEST OF THE 4TH TELEPHONE POLE NORTHWEST OF MILEPOLE 283, 13 RAILS SOUTHEAST OF THE NORTHWEST END OF A SIDING, 6 1/2 RAILS SOUTHEAST OF THE SOUTHEAST ONE OF TWO SIGNALS, 73.9 FEET SOUTHWEST OF THE SOUTHWEST RAIL OF A SIDETRACK, 12 FEET SOUTHWEST OF THE CENTER LINE OF A TRACK ROAD PARALLELING THE TRACK, 2.0 FEET NORTHWEST OF A WITNESS POST, ON TOP OF THE NORTHEAST END OF A SHORT EMBANKMENT, ABOUT 8 FEET LOWER THAN THE TRACK, ABOUT 3 FEET HIGHER THAN THE TRACK ROAD, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.4 FOOT ABOVE THE GROUND.
01/01/1955 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1955 RECOVERED IN GOOD CONDITION.

Control Text

  • 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 1992. * This is a POSTED BENCH MARK height. Code B indicates a distribution rate of 1.1 thru 2.0 mm/km.
  • 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.

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