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Details for Benchmark: MS0201

N 41° 40.217 W 112° 42.400 (NAD 83)

Altitude: 4296.78

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

Location:
In BOX ELDER county, UT View Original Datasheet
Designation:
Z 60
Marker Type:
bench mark disk
Setting:
in rock outcrop
Stability:
Most reliable and expected to hold position/elevation well.

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N 41° 40.237 W 112° 42.410

Bench Mark Z 60 was recovered in good condition. It was as described, with the exception that there is no longer a railroad milepost at this location.

[Photos:]
photoMS0201 20070408 G (Box Elder Co., UT)
Bench Mark Z 60 w/GPSr.
photoMS0201 20070408 C (Box Elder Co., UT)
Bench Mark Z 60.
photoMS0201 20070408 B (Box Elder Co., UT)
Bench Mark Z 60 from Eye Level.
photoMS0201 20070408 A1 NW (Box Elder Co., UT)
Northwest at Bench Mark Z 60.
photoMS0201 20070408 A2 NE (Box Elder Co., UT)
Northeast at Bench Mark Z 60.

Documented History (by the NGS)

01/01/1934 by CGS (MONUMENTED)
01/01/1953 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1953 14.6 MI SE FROM LOCOMOTIVE SPRINGS. 1.4 MILES NORTHEAST ALONG A DIRT ROAD FROM THE NORTHWEST SPRING OF LOCOMOTIVE SPRINGS, THENCE 13.2 MILES SOUTHEAST ALONG A GRAVELED ROAD ON THE ABANDONED SOUTHERN PACIFIC COMPANY RAILROAD BED. 15.4 MILES WEST OF PROMONTORY, 0.45 MILE (17-3/4 POLES) NORTH OF MILEPOLE 758, 201.0 FEET NORTH OF THE CENTER OF THE EAST END OF A 1- BY 1-FOOT WOODEN BOX CULVERT, ABOUT 75 YARDS SOUTH OF THE SOUTH END OF A CUT BANK ON THE WEST SIDE OF THE ROAD, IN THE TOP OF A 12- BY 12-FOOT OUTCROP, 19 FEET EAST OF THE CENTER LINE OF THE ROAD, ABOUT 3 1/2 FEET HIGHER THAN THE ROAD, AND MARKED BY THE WHITE PAINTED LETTERS BM.

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 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.

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