GREER

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

* NAD 83(1992)- 40 50 14.64088(N) 105 09 48.23512(W) ADJUSTED

* NAVD 88 - 1814.4 (meters) 5953. (feet) GPS OBS

X - -1,264,384.626 (meters) COMP
Y - -4,665,485.862 (meters) COMP
Z - 4,149,955.401 (meters) COMP

LAPLACE CORR- -15.41 (seconds) DEFLEC96
ELLIP HEIGHT- 1799.69 (meters) GPS OBS
GEOID HEIGHT- -14.73 (meters) GEOID96
HORZ ORDER - FIRST
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 determined by GPS observations.

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 - 1,548,089.90 3,093,141.85 sFT 1.00000922 +0 13 03.0
SPC CO N - 471,858.744 942,791.522 MT 1.00000922 +0 13 03.0
UTM 13 - 4,520,720.047 486,224.205 MT 0.99960234 -0 06 24.7

SUPERSEDED SURVEY CONTROL

No superseded survey control is available for this station.

STAMPING: GREER 97
STABILITY: B = Probably hold position/elevation well
SATELLITE: The site location was reported as suitable for satellite observations - 1997

HISTORY - Date Condition Recov. By

HISTORY - 1997 MONUMENTED CO-069

STATION DESCRIPTION

DESCRIBED BY LARIMER COUNTY COLORADO 1997 (RSC) THE STATION IS LOCATED ABOUT 12.5 MI (20.1 KM) NORTHWEST OF WELLINGTON, 12 MI (19.3 KM) NORTH-NORTHEAST OF TEDS PLACE AND 4 MI (6.4 KM) NORTHEAST OF THE FORKS, IN THE NORTHWEST 1/4 OF SECTION 18, T 10 N, R 69 W. OWNERSHIP--LARIMER COUNTY ROAD RIGHT-OF-WAY TO REACH THE STATION FROM THE INTERSECTION OF LARIMER COUNTY ROAD 19 AND LARIMER COUNTY ROAD 80, GO WEST ON LARIMER COUNTY ROAD 80 FOR 1.5 MI (2.4 KM) TO A LARGE CURVE IN THE ROAD GOING TO THE NORTHWEST. CONTINUE AHEAD ON LARIMER COUNTY ROAD 80 NORTHWEST FOR 1.3 MI (2.1 KM) TO JUST WEST OF THE TOP OF THE HILL AND THE STATION ON THE RIGHT AT A PULL OUT OVER LOOKING PARK CREEK RESERVOIR TO REACH THE STATION FROM THE INTERSECTION OF COUNTY ROAD 80 AND U. S. HIGHWAY 287, GO EAST ON COUNTY ROAD 80 FOR 5.3 MI (8.5 KM) TO THE STATION ON THE LEFT AT A PULL OUT FOR AN OVERLOOK TO PARK CREEK RESERVOIR THE MARK IS A STANDARD LARIMER COUNTY GEODETIC CONTROL MARK SET IN A DRILL HOLE IN A 1.6 M (5.2 FT) BY 1 M (3.3 FT) SANDSTONE OUTCROP PROJECTING 5 CM ABOVE THE GROUND. IT IS RECESSED 2 CM INTO THE ROCK. IT IS 12.4 M (40.7 FT) NORTH FROM THE CENTER OF THE DIRT ROAD, 2.3 M (7.5 FT) SOUTHEAST FROM A TWO WAY BRACE POST AND 1.55 M (5.09 FT) SOUTH FROM A RIGHT-OF-WAY FENCE AND WITNESS POST.