I would be thrilled to own the land that I presently live on. And, being in Colorado, I'm probably west of whatever line you're talking about.
Might suggest you discuss the matter with bureau of land management. I once read it is with them that the land patents are registered. It may not be as simple as asking them if you can patent your land. If you go and ask they may laugh at you and then you'll be mad at me. I'm just repeating what I read somewhere. Do your own due dilligence.