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Details for Benchmark: FS0798

N 35° 17.483 W 115° 14.200 (NAD 83)

Altitude: 4810.5

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

Location:
In SAN BERNARDINO county, CA View Original Datasheet
Designation:
W 5
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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Recovered in good condition. Handheld GPSr (HH2) indicated coordinates of N 35 17 32.5 W 115 14 13.6.

[Photos:]
photoFS0798 W 5
photoFS0798 W 5 wide view SE

Found F 733 first and almost tripped over this one when we got there. It is only about 10 from F 733 and it is in good condition.

[Photos:]
photoW 5 near F 733
photoW 5 & GPSr
photoW 5 & F 733
Red arrow points to W 5.

Documented History (by the NGS)

Unknown by CGS (MONUMENTED)
01/01/1944 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1944 8.5 MI SE FROM IVANPAH. 2.7 MILES SOUTHEAST ALONG THE GOFFS-IVANPAH ROAD FROM THE POST OFFICE AT IVANPAH, THENCE 5.8 MILES SOUTHEAST ALONG THE ABANDONED A.T. AND S FE R.R., AT BARNWELL, 58 FEET SOUTHEAST OF THE CENTER-LINE OF THE OLD RAILROAD BED WHICH IS NOW THE GOFFS-IVANPAH ROAD, 41 FEET NORTH OF THE CENTER-LINE OF THE SIDE ROAD LEADING EAST TO A 1-STORY RED ROOFER BUILDING AND ON TO A MINE. 2.5 FEET NORTHEAST OF REFERENCE POST. GRANITE POST WITH USBM CHISELED ON TOP AND A SQUARE HOLE CUT IN CENTER OF POST. PROJECTING ABOUT 0.4 FOOT ABOVE THE GROUND.

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  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.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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