E 137 RESET

*CURRENT SURVEY CONTROL (Retrieval Date = May 1, 1998)

* NAD 83(1992)- 40 47 19.36020(N) 105 11 29.06979(W) ADJUSTED

* NAVD 88 - 1838.73 (meters) 6032.6 (feet) RESET

X - -1,267,596.406 (meters) COMP
Y - -4,668,296.468 (meters) COMP
Z - 4,145,877.993 (meters) COMP

LAPLACE CORR- -15.35 (seconds) DEFLEC96
ELLIP HEIGHT- 1824.14 (meters) GPS OBS
GEOID HEIGHT- -14.66 (meters) GEOID96
HORZ ORDER - FIRST
VERT ORDER - THIRD
ELLP ORDER - FOURTH CLASS I

The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in March 1998.

The orthometric height was computed from unverified reset data.

The X, Y, and Z were computed from the position and the ellipsoidal ht.

The Laplace correction was computed from DEFLEC96 derived deflections.

The ellipsoidal height was determined by GPS observations and is referenced to NAD 83.

The geoid height was determined by GEOID96.

North East Units Scale Converg.

SPC CO N - 1,530,322.46 3,085,453.00 sFT 1.00000088 +0 11 57.8
SPC CO N - 466,443.219 940,447.955 MT 1.00000088 +0 11 57.8
UTM 13 - 4,515,320.050 483,850.970 MT 0.99960321 -0 07 30.2

SUPERSEDED SURVEY CONTROL

No superseded survey control is available for this station.

MARKER: DB = BENCH MARK DISK
SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT (ROUND)
STAMPING: E 137 RESET 1971
STABILITY: C = May hold, but of type commonly subject to surface motion
SATELLITE: The site location was reported as suitable for satellite observations - February 21, 1997

HISTORY - Date Condition Recov. By

HISTORY - 1971 MONUMENTED CODH

HISTORY - 19970221 GOOD NGS

STATION DESCRIPTION

DESCRIBED BY COLORADO STATE DEPARTMENT OF HIGHWAYS 1971 2.2 MI N FROM OWL CANYON. 2.2 MILES NORTH ALONG U.S. HIGHWAY 287 FROM OWL CANYON, 0.57 MILE SOUTHEAST OF A CONCRETE CULVERT WHICH HAS THE YEAR 1971 IN THE SOUTH WEST HEADWALL, 235 FEET SOUTHWEST OF AN APPROACH LEADING NORTHEAST INTO A LIMESTONE QUARRY, ALONG THE WESTERN RIGHT/OF/WAY, 47.5 FEET SOUTHEAST OF A POWER LINE, POLE AND 5 FEET FROM HIGHWAY STATION 1034426.7 THE MARK IS BELIEVED TO BE SET IN THE TOP OF A CONCRETE POST.

Station Recovery (1997)

RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1997 (RSC) THE STATION IS LOCATED ABOUT 16 MI (25.7 KM) NORTHWEST OF FORT COLLINS, 10 MI (16.1 KM) NORTH-NORTHWEST OF TEDS PLACE AND 1.5 MI (2.4 KM) EAST-SOUTHEAST OF LIVERMORE AND ACROSS THE ROAD FROM THE ENTRANCE TO THE REX QUARRY OWNED BY THE COLORADO LIEN CO. IT IS AT U.S. HIGHWAY 287 MILEPOST 365.5, IN THE SOUTHEAST 1/4 OF SECTION 35, T 10 N, R 70 W. OWNERSHIP--COLORADO DEPT. OF TRANSPORTATION RIGHT-OF-WAY TO REACH THE STATION FROM TEDS PLACE AT THE INTERSECTION OF U.S. HIGHWAY 287 AND STATE HIGHWAY 14, GO NORTH ON U.S.HIGHWAY 287 FOR 9.55 MI (15.37 KM) TO THE STATION ON THE LEFT THE STATION IS A STANDARD DISK SET INTO THE TOP OF A ROUND CONCRETE POST 1 FT (0.3 M) IN DIAMETER AND PROJECTING 0.3 FT (9.1 CM) ABOVE GROUND. IT IS 252 FT (76.8 M) SOUTH OF THE EXTENDED CENTER OF THE ENTRANCE ROAD GOING EAST FOR THE COLORADO LIEN CO. QUARRY, 82.0 FT (25.0 M) NORTH OF THE CENTER OF A GATE OVER A DIRT ROAD GOING WEST, 75.0 FT (22.9 M) WEST OF THE CENTER LINE OF U.S.HIGHWAY 287, 47.0 FT (14.3 M) EAST-SOUTHEAST OF A POWER POLE WITH GUY WIRES ON THE EAST AND NORTH SIDES, 1.5 FT (0.5 M) SOUTH OF A PLASTIC WITNESS POST, 0.9 FT (27.4 CM) NORTH OF A METAL WITNESS POST AND 0.4 FT (12.2 CM) EAST OF THE WESTERN RIGHT-OF-WAY FENCE.