Roy, I found my land in Montana by starting doing a google search (might not have been Google, this was a long time ago) for "Remote Cabins". After weeding thru the cons and the high priced land for sale I found a Realtor who handled both unimproved, cheap land and some high rent stuff.
I told him what I was looking for and a few months later closed on a 39 acre remote piece of property with a half finished cabin. Got it for a cheap price because it is "Seasonal Access" on an old logging road.
Once you decide on an area just start doing internet searches and watch out for the scammers selling old mine leases and such. Make sure there is a legitimate deed involved with no strange provisions. AND that you have actual access to the property.
Part of the enjoyment, at least for me, was the search for a bit of land that I wanted.
Good Luck on your quest and Safe Travels. Bob J.