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Details for Benchmark: FR0250

N 35° 19.067 W 112° 52.067 (NAD 83)

Altitude: 5239.02

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

Location:
In YAVAPAI county, AZ View Original Datasheet
Designation:
C 104
Marker Type:
survey 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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While geocaching in Seligman found this marker.

N 35° 19.058 W 112° 52.001

Recovered in good condition.

Right where the BM X on the map put it.

This mark was set by the USFS (Forest Service) in a big open empty pasture - No trees anywhere close by!

This entry was edited by 2oldfarts (the rockhounders) on Tuesday, 19 November 2013 at 02:42:48 UTC.

[Photos:]
photoC 104 near Seligman
First picture taken to verify that the mark was where we thought it should be. It was taken from the fence we first encountered when we got to the general area.
photoC 104 near Seligman
photoC 104 view west
photoC 104 view east

Documented History (by the NGS)

01/01/1935 by USFS (MONUMENTED)
DESCRIBED BY US FOREST SERVICE 1935 0.9 MI E FROM SELIGMAN. 0.9 MILE EAST ALONG U.S. HIGHWAY 66 FROM THE ATCHISON, TOPEKA AND SANTA FE RAILWAY STATION AT SELIGMAN, YAVAPAI COUNTY, THENCE ABOUT 0.5 MILE SOUTH ALONG THE ROAD LEADING TO WALNUT CREEK, ABOUT 0.2 MILE SOUTH OF THE STOCKYARDS, OPPOSITE A CURVE, 40 FEET EAST OF THE CENTER LINE OF THE ROAD, AND 3 FEET WEST OF A WOODEN WITNESS POST. A UNITED STATES FOREST SERVICE STANDARD DISK, STAMPED C 104 1935 AND SET IN THE TOP OF A CONCRETE POST PROJECTING ABOUT 0.4 FOOT ABOVE GROUND. NOTE-- MARK IS ALONG THE OLD ROAD IN PASTURE LAND, A SHORT WAYS TO THE EAST OF THE NEW ROAD AND EASY TO RECOVER.
01/01/1979 by USGS (GOOD)
RECOVERY NOTE BY US GEOLOGICAL SURVEY 1979 0.9 MILE EAST ALONG U.S. HIGHWAY 66 FROM THE ATCHISON, TOPEKA AND SANTA FE RAILWAY STATION AT SELIGMAN, YAVAPAI COUNTY, THENCE ABOUT 0.5 SOUTH ALONG THE OLD ROAD LEADING TO WALNUT CREEK, ABOUT 0.2 MILE SOUTH OF THE STOCKYARDS, OPPOSITE A CURVE, 173 FEET EAST OF THE CENTER LINE OF THE ROAD, A AND 3 FEET WEST OF A WOODEN WITNESS POST. A UNITED STATES FOREST SERVICE STANDARD DISK, STAMPED C 104 1935 AND SET IN THE TOP OF A CONCRETE POST PROJECTION ABOUT 0.4 FEET ABOVE GROUND.
01/01/1982 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1982 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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