Ive been hunting right along the Nevada California State line and ended up buying a non-resident California Hunting License because I had no idea when in the field where the state line was. I bought a Garmin GPS because the salesman told me that it would show me where the state line was withing about 12 feet. When out in the field with the GPS I was more confused than ever. One minute the California State line was .5 miles to the West next time the Nevada State line was .5 miles to the East. I called Garmin and explained what I was doing and was told that the GPS was good to about .5 miles. I called again and another rep told me the same thing. I even stood right on the State line on a paved road and It was still .5 miles off.........................I took it back and now rely only on 7.5 minute maps and just to protect myself bought the California Non-Resident License.