Hermits life part2

http://boards.straightdope.com/sdmb/showthread.php?t=275412&highlight=living+woods

How does one go about getting a remote piece of land in say the western states? Perferably cheap and isolated? I tried some searches and have only come up with housing lots or developement land. SHould I just contact a real estate agent in the states that I’m interested in? Thanks in advance.