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Details for Benchmark: PR0845

N 44° 30.697 W 097° 03.618 (NAD 83)

Altitude: 1785

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

Location:
In BROOKINGS county, SD View Original Datasheet
Designation:
LAKE AZ MK
Marker Type:
survey disk
Setting:
setting not listed - see description
Stability:
Mark of questionable or unknown stability.

Reference Points

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Documented History (by the NGS)

01/01/1968 by USGS (MONUMENTED)
DESCRIBED BY US GEOLOGICAL SURVEY 1968 (RLM) STATION IS LOCATED ABOUT 10.0 MI N. AND 3.8 MI E. OF TOWN OF ARLINGTON, IN NW 1/4 SEC. 15, T. 112 N., R. 52 W. TO REACH FROM JCT. OF U.S. HWYS. 14 AND 81 AT E. EDGE OF ARLINGTON, GO N. ON U.S. HWY. 81 FOR 10.5 MI TO CROSSROADS, TURN RIGHT (E.) AND GO 3.0 MI TO T-RD. W., TURN RIGHT (S.) AND GO 0.15 MI TO FIELD ENTRANCE AND CRIB ON LEFT (E.), TURN LEFT TO CRIB AND CONTINUE ON FOOT 0.3 MI TO SMALL BUT PROMINENT TOP. STATION IS LOCATED ON HIGHEST POINT OF TOP. STATION MARK IS STANDARD TABLET CRIMPED ON COPPER WELD ROD AND CENTERED IN 6 IN. DRAIN TILE FILLED WITH GRAVEL. STATION MARK IS SET FLUSH WITH GROUND AND IS STAMPED LAKE AZ. MK. 1968. DIRECTION WAS OBSERVED TO THE ARLINGTON MWT.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in January 1998.
  • The orthometric height was scaled from a topographic map.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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