Egern. Custer, South Dakota.

Egern. Custer, South Dakota.

Mountain cottontail? Custer, South Dakota.

Mountain Goat. Mount Rushmore, South Dakota.

Mule Deer. Hermosa, South Dakota.

Pronghorn. Keystone, South Dakota.

Bison. Keystone, South Dakota.

Pronghorn. Keystone, South Dakota.

Pronghorn. Keystone, South Dakota.

Pronghorn. Custer, South Dakota.

Sorthalet præriehund. Custer, South Dakota.

Sorthalet præriehund. Custer, South Dakota.

Sorthalet præriehund. Custer, South Dakota.

Sorthalet præriehund. Custer, South Dakota.

Sorthalet præriehund. Custer, South Dakota.

Sorthalet præriehund. Custer, South Dakota.

Sorthalet præriehund. Custer, South Dakota.

Sorthalet præriehund. Custer, South Dakota.

Bison. Custer, South Dakota.

Chipmunk. Custer, South Dakota.

Mountain cottontail? Custer, South Dakota.

Mountain cottontail? Custer, South Dakota.

Mountain cottontail? Custer, South Dakota.

Chipmunk. Estees park, Colorado.

Chipmunk. Estees park, Colorado.

Chipmunk. Estees park, Colorado.

Yellow-bellied Marmot. Estees park, Colorado.

Yellow-bellied Marmot. Estees park, Colorado.

Yellow-bellied Marmot. Estees park, Colorado.

Yellow-bellied Marmot. Estees park, Colorado.

Elk. Estees park, Colorado.

Elk. Estees park, Colorado.

Elk. Estees park, Colorado.

Elg. Grand Lake, Colorado.

Elg. Grand Lake, Colorado.

Elg. Grand Lake, Colorado.

Elg. Grand Lake, Colorado.

Elg. Grand Lake, Colorado.

Elg. Grand Lake, Colorado.

Elg. Grand Lake, Colorado.

Elg. Grand Lake, Colorado.

Elg. Grand Lake, Colorado.

Elg. Grand Lake, Colorado.

Elg. Grand Lake, Colorado.

Chipmunk. Central City, Colorado.