Skip to main content

Continuous Operating Reference Station (CORS)

Location: 15620 57 1/2 Road, Collbran, Colorado 

  • Trimble Alloy / Zephyr 3 Geodetic antenna / Trimble pivot platform
  • L1/L2 APC - datum: NAD83(2011)
  • Latitude: 39° 14' 08.56069" N
  • Longitude: 107° 58' 39.51335" W
  • HAE: 1835.826m
  • APC NAVD88 orthometric height = 1851.738m/ 6075.244usft

  • Broadcasting RTK corrections @ 464.5500 MHZ
  • Trimble TDL450H RADIO @ 35W
  • Protocol mode: TT450S or TrimMark3
  • Radio link rate: 9600bps
  • Correction type: CMR+ (RTVRN - CMR+ / CMRx)

RINEX hourly files 24hrs / 7days

GPS specs: 1 second intervals / 5° Elev. mask / 99.0 PDOP mask

RINEX index and general download directions

For more information including login/password for the RINEX files, contact the CORS administrator at 970-244-1826 or trent.howell@mesacounty.us.

GPS antenna and dish antenna next to a power source on a small gravel plot and next to a green fenced field.

    Disclaimer and Limitation of Liability

    Mesa County, Colorado, shall in no event be liable or responsible for any lost profits or any damages of any kind, including but not limited to special, indirect, or consequential damages arising out of or in connection with the use or the inability to use the data hereon or the services provided. Mesa County provides this data and its services as a convenience to its customers. Furthermore, Mesa County reserves the right to change, revise, or otherwise discontinue published data and these services at any time without further notice.