Since this has been in the news again recently, thought this may be of
interest, even if you're not a benchmarker:

http://www.ngs.noaa.gov/INFO/fourcorners.shtml


Planning to finally visit
AD9256<http://www.geocaching.com/mark/details.aspx?PID=ad9256>this
summer, so I'll be sure to bring my camera so it'll count toward's
ACM's Benchmark Challenge Caches!