Capulin Volcano National Monument – New Mexico
by Jerry Pillarelli
| 
Craters of the Moon Idaho
by sirwood
| 
Earth Day "Party for The Planet" - City Plaza, Chico, California April 22, 2011
by Alan Sheckter Photo
| 
Red Mountain
by Mike Staudenmaier, Jr.
| 
Kelly Butte Civil Defense Center
by Jeff B.
|
Sunset Crater Volcano National Monument – Arizona
by Jerry Pillarelli
| 
Sunset Crater Volcano National Monument
by Kim Smith
| 
Hole in the Ground
by Jeff B.
| 
Swatara Rail Trail
by Dave Thomas
| 
MESMERIZING MOMENTS WITH SEQUOIA SEMPERVIRENS
by ravenoaks
|
