earth explorer
http://earthexplorer.usgs.gov/
free topo maps
http://www.digital-topo-maps.com/
small scale maps and glacial
http://nationalmap.gov/small_scale/
interactive map by commodity ie: gold /siler/platinum/etc..
http://mrdata.usgs.gov/mrds/map.html
historical maps
courtesy of Alan Petersens post (2011)
http://www.blm.gov/or/landrecords/survey/ySrvy1.php
this link shows most old mineral (Au, Ag, Pb, sand gravel, pumic etc...) locations in the country. http://mrdata.usgs.gov/mineral-resources/mrds-us.html
Geocommunicator was good for historical research, but now it sucks...
This site is a state geology site. You can use it to see what kind of gology is in your search area. https://fortress.wa.gov/dnr/geology/?Site=wigm
courtesy of :by Henry Miller 7/13/2016
mylandmatters.org gets it close as far as accurate details on location for active claims
Bookmark / save this link. You can zoom into any area in the US down to street level and check your rainfall. The best part is you can change the RANGE on the time. From 3 hours up to 120 days. Know exactly how much rainfall your creek or river or property has gotten. http://www.srh.noaa.gov/ridge2/RFC_Precip/
courtesy of the folks from GoldHog.com :) Doc and the Crew always find the most interesting things
I hope some of these links will help you out will add more as I go thru them to check on them
Comments
you are welcome Tami I hope these help oyu out a bit if you need anyhelp look me up on here