This former beacon site with a mostly intact arrow was discovered by Herbert Arnold. It appears to have been the site of Beacon #23 on the Los Angeles—Las Vegas Airway.
Thanks to Will Awalt of Jones|Carter, we have some new benchmark data for Texas!
New York USGS datasheets are available. They include some very interesting history!
USGS datasheets for North Carolina are available!
Rich and I wrote Finding RHONDA in 2008 as a contribution to Rhonda Rushing’s online publication Caching Now. That publication seems to be defunct now and the previous content is gone, so I’m publishing our article here in its original form.