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Details for Benchmark: RZ1675

N 46° 12.178 W 117° 34.510 (NAD 83)

Altitude: 5664.1

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

Location:
In GARFIELD county, WA View Original Datasheet
Designation:
CLEARWATER LO
Marker Type:
survey disk
Setting:
in rock outcrop
Stability:
Most reliable and expected to hold position/elevation well.

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three in one location

Found this one and two others at this location.

found while geocaching.

Found as described: Clearwater LO 5660 1936 USFS

[Photos:]
photoClearwater LO 5660 1936

Documented History (by the NGS)

01/01/1936 by USFS (MONUMENTED)
DESCRIBED BY US FOREST SERVICE 1936 THIS OCCUPIED STATION IS THE CENTER OF THE U.S.F.S. LOOKOUT TOWER, A 90-FOOT STEEL STRUCTURE, SITUATED ABOUT 28 MILES S OF POMEROY AND 0.5 MILE NW OF CLEARWATER RANGER STATION. STATION MARK IS A DISK SET IN A BURIED BOULDER UNDER THE EXACT CENTER OF THE TOWER. TO REACH FROM POMEROY, DRIVE S 28 MILES ON CLEARWATER ROAD TO LOOKOUT, WHICH IS ABOUT 300 FEET W OF JUNCTION OF CLEARWATER AND IRON SPRINGS ROADS.
01/01/1963 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1963 (JCC) THE STATION WAS NOT OCCUPIED BY AN OBSERVING PARTY. THE INSTRUMENT SUPPORT IS THE TOP OF THE ALIDADE IN LOOKOUT TOWER. THE STATION IS LOCATED ABOUT 21 MILES SOUTHEAST OF DAYTON, 19 MILES SOUTH OF POMEROY AND 0.5 MILE NORTHWEST OF THE CLEARWATER GUARD STATION, IN THE CLEARWATER LOOKOUT. TO REACH THE STATION FROM THE POST OFFICE IN POMEROY, GO EASTERLY ON U.S. HIGHWAY 410 FOR 0.45 MILE TO JUNCTION WITH STATE HIGHWAY 3K. TURN RIGHT AND GO SOUTHERLY ON HIGHWAY 3K FOR 7.8 MILES TO FORKS WHERE HIGHWAY 3K TURNS LEFT. CONTINUE SOUTHERLY ON A GRAVELED ROAD (ROUTE N 911) AS PER SIGNS TO CLEARWATER GUARD STATION FOR 15.7 MILES TO ROAD FORKS ABOUT 100 YARDS EAST OF THE CLEARWATER LOOKOUT TOWER. TURN RIGHT ABOUT 100 YARDS TO THE TOWER AND STATION. THE STATION MARK IS A UNITED STATES FOREST SERVICE MARK SET IN A BURIED BOULDER UNDER THE EXACT CENTER OF THE LOOKOUT TOWER. REFERENCE MARK 1 IS A STANDARD DISK, STAMPED CLEARWATER USFS NO 1 1963, SET IN THE TOP OF A 12 IN SQUARE CONCRETE POST WHICH PROJECTS 3 INCHES. IT IS APPROXIMATELY 300 FEET SOUTH OF THE STATION. REFERENCE MARK 2 IS A STANDARD DISK, STAMPED CLEARWATER USFS NO 2 1963, SET IN THE TOP OF A 12 IN SQUARE CONCRETE POST WHICH PROJECTS 3 INCHES. IT IS APPROXIMATELY 300 FEET WEST OF THE STATION. THE AZIMUTH MARK IS A STANDARD DISK, STAMPED CLEARWATER USFS 1963, SET IN THE TOP OF A 12 IN SQUARE CONCRETE POST WHICH PROJECTS 2 INCHES. IT IS APPROXIMATELY 0.25 MILE NORTHEAST OF THE STATION, AND ABOUT 100 FEET EAST OF THE ROAD.
01/01/1964 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1964 (JCC) THE STATION IS ABOUT 20 MILES SOUTHEAST OF DAYTON, 18 MILES SOUTH OF POMEROY AND 1/2 MILE NORTHWEST OF CLEARWATER GUARD STATION, NEAR THE CENTER OF THE BASE OF THE CLEARWATER LOOKOUT TOWER. THE MARK IS A BRONZE DISK OF THE UNITED STATES FOREST SERVICE, STAMPED CLEARWATER L.O. 5660 1936, CEMENTED IN A DRILL HOLE IN A 1 X 1 FOOT ROCK OUTCROP FLUSH WITH THE GROUND SURFACE. A TRAVERSE CONNECTION WAS MADE TO TRIANGULATION STATION CLEARWATER, THE DISTANCE BEING 32.23 FEET OR 9.823 METERS WEST. NOTE--THIS STATION WAS OCCUPIED IN THE LOOKOUT CABIN. OBSERVATIONS TO ALL MAIN SCHEME STATIONS WERE REJECTED. SEE STATION CLEARWATER.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in December 1991.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.