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USGS marker at top of Thurston Peak, formerly known as North Francis on old USGS maps
From the USGS data sheet I get the following information: MR0701 DESIGNATION - FRANCIS MR0701 PID - MR0701 MR0701 STATE/COUNTY- UT/MORGAN MR0701 USGS QUAD - PETERSON (1991) MR0701 MR0701 *CURRENT SURVEY CONTROL MR0701 ___________________________________________________________________ MR0701* NAD 83(1994)- 41 04 55.09590(N) 111 51 05.67452(W) ADJUSTED MR0701* NAVD 88 - 2959.68 (+/-2cm) 9710.2 (feet) VERTCON MR0701 ___________________________________________________________________ Unfortunately, I didn't have the datum set correctly to make it easy to see how accurate the GPSR was by looking at the photo. I did however save 4 waypoints at this location. When looking at the data from the saved waypoints vs. the downloaded one from geocaching.com, it shows the saved waypoints being off by anywhere from 16.7 feet to 18.4 feet. As you can see from the photo, I hadn't given the receiver time to get a good WAAS solution, but overall I'd say the accuracy was great with all readings being closer than about 6 meters. To download the raw data to view in EasyGPS, or any of the other topografix programs use the right click save as option of your browser: |
