What is the best way to seek out pre-built rural properties with a lot of land? Most property search engines require you to narrow it down by location.

I'm a bit of a recluse and have always wanted to live in a house high up in the mountains, surrounded by miles of virgin forest. When researching properties like these, I always have to pre-determine the location or at least narrow down what kind of house I want. I'm willing to live anywhere in the ...