Details for Benchmark: DW0377

N 33° 42.183 W 115° 48.117 (NAD 83)

Altitude: 2322.35

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

Location:
In RIVERSIDE county, CA View Original Datasheet
Designation:
G 727
Marker Type:
bench mark disk
Setting:
in a boulder
Stability:
May hold, but of type commonly subject to surface motion.

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Navigation

Didn't find it 11/02/2015 Dust-maker couldn't find DW0377   Visit Log

Didn't find it.
Didn't find it 11/01/2015 knowshorts couldn't find DW0377   Visit Log

Looks like the mark was lost when the turnout was installed.
Didn't find it 11/01/2015 Supercheeseburger couldn't find DW0377   Visit Log

Agree with California Bear. Searched the area and came up with the same results. Nothing.
Didn't find it 02/05/2005 California Bear couldn't find DW0377   Visit Log

Not found. The area appears to have been made into a turnout for a roadside display.

[Photos:]
photoDW0377 - Joshua Tree National Park - Not found
The turnout where the mark should be.
Found it 03/02/2003 Florian found DW0377   Visit Log

Found as described just west of Cottonwood Canyon road.

Documented History (by the NGS)

01/01/1944 by CGS (MONUMENTED)
01/01/1974 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1974 43.4 MI S FROM TWENTYNINE PALMS. 1.05 MILES EAST ALONG STATE HIGHWAY 62 FROM THE JUNCTION OF ADOBE ROAD AT TWENTYNINE PALMS, THENCE 4.0 MILES SOUTH ALONG UTAH TRAIL, THENCE 38.4 MILES SOUTH ALONG PARK ROUTE 1, AT THE NORTH END OF A CURVE, 32 1/2 FEET EAST OF THE CENTER LINE OF THE ROAD, IN THE TOP OF A SMALL EMBEDDED GRANITE BOULDER WHICH PROJECTS 0.1 FOOT ABOVE THE GROUND, 3.0 FEET SOUTH OF A WITNESS POST, AND ABOUT 1/2 FOOT HIGHER THAN THE ROAD. SEC 26, T5S, R11E. NOTE- PARK HEADQUARTERS AT TWENTYNINE PALMS HAS BEEN MOVED TO A NEW BUILDING, AND THE REFERENCES IN THIS LIST TO THE PARK SERVICE OFFICE SHOULD HAVE THE DISTANCE DECREASED BY 1.7 MILES.
01/01/1978 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1978 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 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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