Power house below Shoshone Dam, Wyoming.

Shoshone Dam near the entrance to Yellowstone Park, Wyoming.

Lava flows at Craters of the Moon National Monument, Idaho.

Bridge over Yellowstone River above the falls at Yellowstone National Park, Wyoming.

Looking south down State Street from the steps of the Utah State Capitol building in downtown Salt Lake City, Utah.

Looking SE toward the Wasatch Mountains from the steps of the Utah State Capitol Building in downtown Salt Lake City, Utah.

Volcanic cone at Craters of the Moon National Monument, Idaho.

Sitting on a lava flow at Craters of the Moon National Monument, Idaho.

Sitting at the entrance to a cave at Craters of the Moon National Monument, Idaho.

Lava flows at Craters of the Moon National Monument, Idaho.

Small geyser cone at Yellowstone National Park, Wyoming.

Camping in the Bighorn Mountains in Wyoming.