DEMAN

4leafclover, This isn't what I am looking for. There used to be a way to see a map of the entire US which you could zoom on to get down to the specific area such as a state, county, etc. All caches in that area would be shown, and you could click on them for cache detail. I can't find where that feature is now.

In geocache.com how do I bring up the map showing the location of all geocaches in a particular area?

My thanks to Artman & Seventhings for your excellent help. The only benchmark I have attempted using my GPS got me within +11 meters in the easterly direction and +27 meters in the northing direction so I guess I have experienced pretty much the same thing you have found in the past.

A NGS Data Sheet shows "...horizontal coordinates were scaled from a topographical map and have an estimated accuracy of +/- 6 seconds." I use NAD27 datum and UTM grids. How can I determine how many meters are equivalent to 6 seconds?

Although I have only logged in one benchmark since I just found this site, I have located several prior to discovering the site. When I first got my GPS I didn't know anything about GEOCACHING so I used it to find benchmarks instead. One of the beauties of benchmarks is that there are dozens & dozens within a ten or twenty mile radius of home whereas there are probably fewer than a dozen caches within the same radius. Of course one of the shortcomings is that often the benchmarks have been removed or destroyed due to new construction, demolition, etc. Now that I know of this site I plan to continue finding benchmarks, but now I'll log them and add photos.

Why don't you consider adding the JEEP website conversion feature to the Benchmark pages like it is on the cache pages? I use NAD27 & UTM and I find the conversion feature very helpful on the cache pages.