Photos of people living off-the-grid in the United States

Eric Valli spent 3 years taking photos of people in the United States who have "decided to live light on the earth." The photographs are terrific. It looks like Valli spent time with two clans: a frontier/settler type group, and another group that look almost like cave people. I wish he had included more information about them!

More:  Eric Valli: Off the Grid >>