Wildflowers bloom in the Sierra Nevada
Wildflowers bloom in the Sierra Nevada


Gerlach (GERL)

GPS Base Station
Washoe County Roads Dept Yard
180 Del Ora Ave
Gerlach, Nevada

Image of Fernley Base Station Antenna
Image of Trimble 5700 receiver
 Mapping Indentifier: H51SM01045  
Datum: NAD83/94 (HARN) Elevation Mask: 10°
Latitude: 40° 38` 59.29427" N Logging Interval: 5 seconds
Longitude:119° 21` 39.03907" W Rollover Period: 2 hours

Data collected with Trimble 5700 GPS receiver and Trimble Reference Station Software

Ellipsoid Height: 1187.435 meters ARP Antenna Height: 0


Data Files:
The following links will access a FTP site. Once you have identified the files you want, click on the filename link. This will initiate the FTP session that will download the desired files to your hard drive.


File Naming:
Each file is named using CORS style format, SSSSDDDh.dat.exe or SSSSDDDh.YYo.zip. SSSS is the GPS Base Station Identifier, DDD it the Julian day, h is the hour beginning with "a" being 0:00:00 and "x" being 23:00:00 in a 24-hour format for both dat and rinex files. Rinex files have YY being the year observed added to the file naming.

Example: For January 1, 2005, the file naming would  be as follows: cof1001a.dat.exe (dat format), cof1001a.05o.zip (rinex format) 

Data Storage:
Data Files are normally available online for at least 21 days, after which they will be deleted. Data is not archived prior to deletion and is therefore unrecoverable. Users are encouraged to download data as soon as practicable.


Contact Information:
Mike Gump (775) 325-8033
Vic Erickson (775)328-2318
Washoe County Dept of Public Works
1001 E. 9th Street
Reno, NV 89520
FAX: (775) 328-3699