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Details for Benchmark: RL1605

N 46° 12.729 W 089° 04.347 (NAD 83)

Altitude: 0

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

Location:
In GOGEBIC county, MI View Original Datasheet
Designation:
IMP LAKE LOOKOUT TOWER USGS
Marker Type:
survey disk
Setting:
setting not listed - see description
Stability:
Mark of questionable or unknown stability.

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ABOUT 7 MI SE OF WATERSMEET, 1.6 MI S OF US-2, 0.5 S OF IMP LAKE IN OTTAWA NAT'S FOREST. FROM JUNCTION OF US-45, 5.45 MI SOUTHEAST TO IMP LAKE RD NO.3978, THENCE 1.6 MI SOOUTH TO WOODS ROAD RIGHT, THENCE 0.2 MI WEST TO FORK, THENCE RIGHT 0.05 MI TO END OF RD. IT IS IN THE EXACT CENTER OF 4 CONCRETE FOOTINGS OF OLD L.O.T., 1 FT E OF WITNESS POST AND FLUSH WITH GROUND.

Documented History (by the NGS)

01/01/1938 by USGS (MONUMENTED)
DESCRIBED BY US GEOLOGICAL SURVEY 1938 LOCATED IN NW 1/4 SEC. 16, T. 44 N., R. 38 W. STATION IS MARKED BY U.S.G.S. STANDARD TABLET STAMPED IMP LAKE 1938, SET IN CONCRETE POST AND CENTERED UNDER LOOKOUT TOWER.
01/01/1940 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1940 (KBJ) THE STATION IS A U.S. FOREST SERVICE LOOKOUT TOWER IN THE OTTAWA NATIONAL FOREST AND IS LOCATED ABOUT 7 MILES SOUTHEAST OF WATERSMEET AND 0.5 MILE SOUTH OF IMP LAKE. THE FINIAL AT THE CENTER OF THE LOOKOUT ROOF IS THE POINT SIGHTED UPON. THE STATION WAS NOT VISITED.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in February 1997.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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