Old Man's Cave - Hocking Hills, Ohio

Varmland, Sweden

Torres del Paine, Chile

Laguna Miscanti at 4,200 m.a.s.l., Chile

Sunrise this morning over Reno, Nevada

Afternoon lake in Nagano, Japan

New Melones Lake, Sonora, CA

Broome, Western Australia -

Mitre Peak; Milford Sound, NZ

Hill fortress of Sigiriya, Sri Lanka

Erosion on the slopes of a volcano near Ankisabe, Madagascar

Jay Cooke National Park, MN

American Prairie Reserve, MT.