Caribou herd crossing the Thelon River in Northwest Territories Canada.
Whitetail fawn running in a field of flowers in Minnesota.
Caribou on the snowy tundra at Fletcher Lake in Wapusk N. P. near Churchill, Manitoba, Canada.
Caribou with antlers covered in velvet posing in Denali National Park Alaska.
Dall sheep ram posing on a boulder against blue sky on Primrose Ridge in Denali National Park Alaska sky on Primrose Ridge in Denali National Park Alaska.
Dall sheep lamb nursing on Slope Mountain near the Haul Road in Alaska.
Dall sheep interacting by touching heads on Slope Mountain near the Haul Road in Alaska.
Two bighorn sheep rams interacting.
Muskox posing in fall tundra near the Dalton Highway in Alaska.
Two bull moose sparing Anchorage Alaska.
Cow moose posing in a field of fireweed near Kenai Alaska.
Bull moose in fall color of tundra in Denali National Park Alaska.
Cow moose eating in a small pond near Wonder Lake in Denali National Park Alaska.
Bull moose in fall tundra near Wonder Lake in Denali National Park Alaska.
Bull Elk walking in deep snow in Yellowstone National Park Wyoming.
Bull elk crossing the Madison River at sunrise in Yellowstone National Park Wyoming.
Fawn elk resting in Gibbon Meadows in Yellowstone National Park Wyoming.
Bull elk with frost on its back posing at sunrise in Gibbon Meadows in Yellowstone National Park Wyoming.
Bull elk bugling in Hayden Valley in Yellowstone National Park Wyoming.
Caribou grazing in Denal National Park Alaska.
Buck whitetail deer posing in fall color in Cades Cove in Great Smoky Mountains National Park Tennessee.
American Bison posing in early morning light in Yellowstone National Park Wyoming.
