Impressions (Yellowstone NP)

At Attention (Bryce Canyon National Park)

Little Mo (Theodore Roosevelt NP)

The Hidden Spirit (Theodore Roosevelt National Park)

Delicate Arch Glow (Arches NP)

A Different World (Arches National Park)

Karst (Mammoth Cave National Park)

Land of Wee Noonts (Capital Reef National Park)

Cistern (Yellowstone NP)

Sublime (Yellowstone National Park)