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Details for Benchmark: KL0538

N 39° 29.324 W 107° 17.916 (NAD 83)

Altitude: 5961.79

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

Location:
In GARFIELD county, CO View Original Datasheet
Designation:
Q 158
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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Recovered in fair-good condition

[Photos:]
photoKLO538

Found this one while looking for a near by cache..

[Photos:]
photoBench Mark

Found as described in good condition.Tracks have been pulled up.Disk shiny and a little hard to read.

[Photos:]
photoKL0538 Q 158

South East corner of property west of second track.

Documented History (by the NGS)

01/01/1934 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1934 4.8 MI SE FROM GLENWOOD SPRINGS. 4.8 MILES SOUTHEAST ALONG THE DENVER AND RIO GRANDE WESTERN RAILROAD FROM THE COURTHOUSE AT GLENWOOD SPRINGS, GARFIELD COUNTY, 360 FEET SOUTHEAST OF MILEPOST 365, 70 FEET SOUTHWEST OF THE CENTERLINE OF THE TRACK, 21 FEET NORTHWEST OF THE CENTER OF A GATEWAY, AND 4 FEET NORTHEAST OF A FENCE. A STANDARD DISK, STAMPED Q 158 1934 AND SET IN THE TOP OF A CONCRETE POST.
07/05/1991 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1991 STATION IS LOCATED ABOUT 7 KM (4.3 MI) SOUTH OF GLENWOOD SPRINGS, ALONG STATE HIGHWAY 82, AT MILE 4.8, ON RAILROAD SIDING RIGHT-OF-WAY, AT CROSSING OF PAVED ROAD LEADING TO THE ORRISON DISTRIBUTING COMPANY (A LARGE TAN METAL BUILDING), IN NORTHWEST 1/4 OF SECTION 35, T 6 S, R 89 W. OWNERSHIP--UNKNOWN RAILROAD. TO REACH FROM THE OVERPASS AT THE JUNCTION OF INTERSTATE HIGHWAY 70 AND STATE HIGHWAY 82 AT GLENWOOD SPRINGS, GO SOUTH THROUGH TOWN ON HIGHWAY 82 FOR 1.35 MI (2.17 KM) TO A FORK AT SOUTH END OF TOWN (ROAD RIGHT LEADS TO AIRPORT). KEEP LEFT, SOUTHEAST, ON HIGHWAY 82 FOR 3.1 MI (5.0 KM) TO THE END OF THE MEDIAN BARRIER. CONTINUE AHEAD FOR 1.25 MI (2.01 KM) TO A PAVED ROAD RIGHT. BEAR RIGHT, DOWNGRADE, FOR 0.05 MI (0.08 KM) TO THE SECOND RAILROAD TRACK AND STATION ON THE RIGHT. NOTE--BE SURE THAT PARKED TRUCK CLEARS TRACKS. STATION MARK IS SET IN THE TOP OF A 15-CM SQUARE CONCRETE POST FLUSH WITH THE GROUND IN HIGH WEEDS. IT IS 7.0 M (23.0 FT) NORTHWEST OF THE ROAD CENTER, 4.1 M (13.5 FT) WEST OF THE WEST RAIL OF SIDING TRACK, 3.6 M (11.8 FT) NORTH OF A FENCE CORNER, 0.5 M (1.6 FT) SOUTH OF A FIBERGLASS WITNESS POST, 0.3 M (1.0 FT) EAST OF A WIRE FENCE AND 0.3 M (1.0 FT) NORTHEAST OF A METAL WITNESS POST. DESCRIBED BY G.R.HEID
11/21/1994 by LOCENG (GOOD)
RECOVERY NOTE BY LOCAL ENGINEER (INDIVIDUAL OR FIRM) 1994 (FH) RECOVERED AS DESCRIBED.
09/19/1995 by LOCENG (GOOD)
RECOVERY NOTE BY LOCAL ENGINEER (INDIVIDUAL OR FIRM) 1995 (RSC) RECOVERED AS DESCRIBED.
05/02/1996 by CODOT (GOOD)
RECOVERY NOTE BY COLORADO DEPARTMENT OF TRANSPORTATION 1996 (RSC) RECOVERED AS DESCRIBED.
01/12/1998 by CODOT (GOOD)
RECOVERY NOTE BY COLORADO DEPARTMENT OF TRANSPORTATION 1998 (RSC) RECOVERED AS DESCRIBED.

Control Text

  • The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in May 1992.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991.
  • The X, Y, and Z were computed from the position and the ellipsoidal ht.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The ellipsoidal height was determined by GPS observations and is referenced to NAD 83.
  • 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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