Idaho:
http://alabamamaps.ua.edu/historicalmaps/us_states/idaho/index.html
http://www.lib.utexas.edu/maps/idaho.html
http://www.censusfinder.com/mapid.htm
http://idaho.hometownlocator.com/maps/
http://www.ghosttowns.com/states/id/id.html
http://forums.ghosttowns.com/showthread.php?5153-30-ghost-towns-and-sites-worth-viisiting-in-Idaho
http://gis1.idl.idaho.gov/
http://www.alliancetitle.com/PublicSite/Tools/PlatAndCCRSearch.aspx
http://alabamamaps.ua.edu/historicalmaps/us_states/idaho/index.html
http://www.lib.utexas.edu/maps/idaho.html
http://www.censusfinder.com/mapid.htm
http://idaho.hometownlocator.com/maps/
http://www.ghosttowns.com/states/id/id.html
http://forums.ghosttowns.com/showthread.php?5153-30-ghost-towns-and-sites-worth-viisiting-in-Idaho
http://gis1.idl.idaho.gov/
http://www.alliancetitle.com/PublicSite/Tools/PlatAndCCRSearch.aspx