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Details for Benchmark: ET0856

N 34° 02.237 W 112° 00.313 (NAD 83)

Altitude: 5871

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

Location:
In YAVAPAI county, AZ View Original Datasheet
Designation:
NEW RIVER
Marker Type:
bench mark disk
Setting:
in a boulder
Stability:
May hold, but of type commonly subject to surface motion.

Reference Points

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Recovered in good condition. As noted, a part on the edge has been broken off, but the datum point appears intact.

[Photos:]
photoNEW RIVER / ET0856
A close-up of the mark, with the GPSr.
photoNEW RIVER / ET0856
A close-up of the mark alone.
photoNEW RIVER / ET0856
A wide view of the general area, looking north.
photoNEW RIVER / ET0856
A wide view of the general area, looking northeast towards Benchmark Mountain.

Recovered in good condition. Vandals have broken one edge of the disk off but it remains solidly cemented in its setting.

[Photos:]
photoET0856 NEW RIVER closeup
photoET0856 NEW RIVER wide view north

Found out Caching in New River

Documented History (by the NGS)

01/01/1900 by USGS (MONUMENTED)
01/01/1902 by USGS (GOOD)
DESCRIBED BY US GEOLOGICAL SURVEY 1902 RECOVERED IN GOOD CONDITION.
01/01/1966 by USGS (GOOD)
RECOVERY NOTE BY US GEOLOGICAL SURVEY 1966 RECOVERED AS DESCRIBED. REACHED BY HELICOPTER.
01/01/1969 by USGS (GOOD)
RECOVERY NOTE BY US GEOLOGICAL SURVEY 1969 RECOVERED AS DESCRIBED. LOCATED ABOUT 12.5 MI NE. OF NEW RIVER, ABOUT 8.5 MI SE. OF BLACK CANYON CITY. ON TOP OF PROMINENT PEAK. TO REACH FROM NEW RIVER, TAKE HWY. 17 4 MI N. TO TABLE MESA RD. TURNOFF. GO RIGHT ON TABLE MESA RD. 1.2 MI TO RANCH YARD, GO THROUGH RANCH YARD 0.1 MI TO GATE, PASS THROUGH GATE FOLLOWING MAIN-TRAVELED RD. 2.9 MI TO TONTO NATIONAL FOREST BOUNDARY AND GATE, PASS THROUGH GATE FOLLOWING MAIN-TRAVELED RD. 6.5 MI TO GATE, PASS THROUGH GATE AND GO 0.5 MI TO SMALL CABIN AND CORRAL, CONTINUE STRAIGHT 0.3 MI TO GATE, PASS THROUGH GATE AND GO 1.4 MI TO T-RD. GO LEFT ON UPPER RANCH RD. 3.3 MI TO DIM RD. LEFT. USE 4-WHEEL DRIVE AND GO LEFT ON DIM RD. 3.7 MI TO SADDLE AND END OF TRUCK TRAVEL. HIKE NW. UP RIDGE TO TOP AND STATION. A 1-HOUR PACK. STATION MARK--STANDARD ALUMINUM BM TABLET STAMPED---VA 5845---.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in August 1993.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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