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Details for Benchmark: SX0541

N 47° 15.117 W 120° 35.117 (NAD 83)

Altitude: 6364.04

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

Location:
In KITTITAS county, WA View Original Datasheet
Designation:
LION ROCK RM 2
Marker Type:
bench mark 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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Found it after a nearby geocache. Considering all it's been through, it's in pretty good shape.

[Photos:]
photoSX0541

Great views from up here! All is well.

[Photos:]
photoClose up Lion Rock reference mark 2
photoLion Rock reference mark 2

Drove up here today and enjoyed the views and found the BM.

[Photos:]
photoBM!

An easy drive too find.

Right where it should be, the challenge was finding the Azimuth marker.

[Photos:]
photoLion Rock Reference Mark 2
Here it is

Found while going for the nearby cache.

Found it while getting a nearby cache.

Found it while up hunting.

Found with K9Krazy.

I came here to grab a nearby cache and decided to log this too. Both benchmarks are scratched and dented but still legible.

Found it with troublejv, GeekGirl and Reino on a beautiful day.

Found with alciato.

N 47° 15.141 W 120° 35.141

Up here camping for the night to watch the Perseid meteor shower. My GPSr readings at the reference mark are shown above.

[Photos:]
photoLion Rock Reference Mark 2

Found in good condition, but I will be back for the cache now that I know it is up here.

Found this after locating nearby geocache.

Found it where we parked to look for the cache at Lion Rock.

Documented History (by the NGS)

01/01/1941 by CGS (MONUMENTED)
01/01/1949 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1949 14.1 MI E FROM LIBERTY. 9.1 MILES NORTHEAST ALONG THE BEEHIVE ROAD FROM THE POST OFFICE AT LIBERTY, THENCE 5.0 MILES SOUTH ALONG THE LION ROCK LOOKOUT ROAD, 0.8 MILE WEST OF THE JUNCTION OF THE WILSON CREEK ROAD, AT LION ROCK LOOKOUT, 60.5 FEET SOUTHWEST OF THE WEST LEG OF THE TOWER, 60.7 FEET WEST OF THE WEST CORNER OF A GARAGE, 52.6 FEET WEST OF THE STATION, 50 FEET SOUTHEAST OF THE EDGE OF A CLIFF, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.5 FOOT ABOVE THE GROUND.
01/01/1989 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1989 (REH) 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.