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Details for Benchmark: FS0764

N 35° 23.833 W 115° 15.483 (NAD 83)

Altitude: 3270.5

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

Location:
In SAN BERNARDINO county, CA View Original Datasheet
Designation:
CHISELED SQUARE 2
Marker Type:
chiseled square
Setting:
massive structures
Stability:
Probably hold position/elevation well.

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Recovered in good condition.

[Photos:]
photoChiseled square 2 near Nipton, CA
photoChiseled square 2 and Post, looking south
photoChiseled square 2 culvert.
This shows the date of 1926 so the square was cut between 1926 and 1944

Recovered in good condition in the year 2003

[last edit: 5/5/2003 12:08:11 AM PST]

[Photos:]
photoConcrete Bridge number 272.49
Picture of Chiseled Square 2 did not show up in other picture taken.

Documented History (by the NGS)

Unknown by RBNF (MONUMENTED)
01/01/1944 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1944 4.8 MI NE FROM IVANPAN. ALONG THE UNION PACIFIC RAILWAY, 4.8 MILES NORTHEAST OF THE STATION AT IVANPAH, SET IN THE TOP OF THE WEST END OF THE SOUTH ABUTMENT OF BRIDGE NUMBER 272.49. AN OUTLINED SQUARE.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.
  • The geoid height was determined by GEOID99.

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