Table 1. Coordinates of base stations (TP200 and Windy) and control points. See figure 2 for locations. Latitude and longitudes are given in WGS84 coordinates. Easting and Northing values are given in Colorado State Plane coordinates, southern zone. Elevation is NAVD88 height above mean sea level. Point names incorporate the method used to determine the final position. Positions of points that end in adj were computed using a least-squares adjustment. Positions of points that end in TP200 or Windy were determined based on the baseline solution from the named station. For example, the position of CP2-Windy was determined using the baseline solution from Windy to CP2. TP200 and Windy were determined by a static survey using base station S424 located near Blue Mesa Reservoir, WGS coordinates, N 38 27 35.60861, W 107 18 12. 64275, Ellipsoid Height, 2299.46.

 

Point	Date(s) of GPS Observation (m,d,y)	Longitude (Degrees, Minutes, Seconds) and standard error (m)	Latitude (Degrees, Minutes, Seconds) and standard error (m)	Ellipsoid Height and standard error (m)	Easting (m)	Northing (m)	Elevation (m)
TP200	5/12/97	107 16 24.35915	37 59 9.92868	2930.482	758624.740	452715.056	2945.210
Windy	5/13/97	107 14 32.21986	37 59 10.37092	3315.033	761360.851	452677.197	3329.793
CROWN EAST-adj	7/28/98-7/30/98	107 14 11.87713 ±0.007	38 00 23.98378 ±0.005	3705.171 ±0.007	761899.344	454937.103	3719.980
LEVEE-adj	7/28/98-7/30/98	107 16 5.57084 ±0.006	37 59 26.70796 ±0.004	2987.935 ±0.006	759092.909	453223.590	3002.674
CP1-adj	7/28/98-7/30/98	107 14 17.50263 ±0.005	37 59 58.35631 ±0.004	3421.365 ±0.005	761747.435	454149.676	3436.169
CP2-Windy	7/28/98	107 14 46.68642 ±0.003	38 00 01.07886 ±0.004	3331.271 ±0.005	761037.136	454246.879	3346.014
CP3-adj	7/28/98-7/30/98	107 14 57.60740 ±0.006	37 59 43.83557 ±0.004	3280.737 ±0.006	760760.793	453720.333	3295.517
CP4-adj	7/28/98-7/30/98	107 14 35.55985 ±0.007	38 00 11.65818 ±0.005	3511.385 ±0.007	761314.625	454567.921	3526.180
CP5-adj	7/28/98-7/30/98	107 15 13.30739 ±0.006	37 59 42.31149 ±0.004	3222.357 ±0.006	760376.927	453680.535	3237.128
CP6-adj	7/28/98-7/30/98	107 15 19.60700 ±0.006	37 59 29.31424 ±0.004	3158.888 ±0.006	760215.724	453282.777	3173.655
CP7-adj	7/28/98-7/30/98	107 15 26.06481 ±0.005	37 59 33.75204 ±0.004	3150.379 ±0.005	760060.759	453422.536	3165.142
CP8-adj	10/28/98-10/29/98	107 15 52.43924 ±0.006	37 59 14.12107 ±0.004	3029.771 ±0.006	759405.928	452829.537	3044.506
A-adj	7/28/98-7/30/98	107 16 26.39955 ±0.006	37 59 17.63479 ±0.004	2944.243 ±0.006	758579.473	452953.543	2958.970