I could very well be reading this wrong, but it looks like for "only" 15 million you can almost make it into the top 10 with a single purchase of 860,000 acres: https://www.landwatch.com/white-pine-county-nevada-farms-and...
Anybody want to get together and purchase 1350 sq. miles of Nevada? (for comparison, about twice the size of Houston). Timeshare? Tech commune? Minerals? (According to this site [1] previous region mining and known minerals are: Au, Ag, Cu, Sb, Be, Coal, Fluorite, Flourspar, Pb, W, Zn; although not much of claims near the actual property.) Low-water surface farming or ranching? Bragging rights?
[1] https://data-ndom.opendata.arcgis.com/pages/criticalminerals