Wow thats good!! I've seen them off by as much as .2 miles. The one we went for was off by about .15 miles. We ended up using the directions on the data sheet. Although most of the roads they mention are either paved now or gone all together we were able to piece it together close enough to find it. Here is a good picture of what these benchmarks typicaly look like, look in the background Cody....YELLOW Jeep!!! http://img.groundspeak.com/cache/log/216686_500.JPG Also as an idividual you can report back to the NGS on the conditions of the benchmarks you find. If anyone is interested I'll post the link. Michael Team TJ ----Original Message Follows---- >. Most of the lower resolution > coordinates claim only +/-6 arcsecond resolution, but I've rarely seen one > off by more than about 1 arcsecond on either longitude or latitude, so the > GPSR should get you within eyeball distance of the marker - perhaps 100 feet > or so (but of course, some are hard to see under the scrub bushes and so on). The one that was near my work showed a difference of 5 feet between my GPSR and the published coords. Darren Team Imperial Eagle _______________________________________________ Az-Geocaching mailing list Az-Geocaching@listserv.snaptek.com http://listserv.snaptek.com/mailman/listinfo/az-geocaching Michael Fleigle Http://members.xoom.com/Fleg _________________________________________________________________ Join the world’s largest e-mail service with MSN Hotmail. http://www.hotmail.com