August Sunset over the mountains - Yellowstone National Park, WY (c) Jim Clark
Summer Scene from Slough Creek - Yellowstone National Park, WY (c) Jim Clark
Lower Falls of the Yellowstone - Yellowstone National Park, WY (c) Jim Clark
August Morning - Yellowstone National Park, WY (c) Jim Clark
Summer Morning View from Blacktail Plateau - Yellowstone National Park, WY (c) Jim Clark
Afternoon Light on the Hills - Yellowstone National Park, WY (c) Jim Clark
Orange Spring Mound - Mammoth Hot Springs - Yellowstone National Park, WY (c) Jim Clark
Artesian Geyer - Firehole Lake Drive, Yellowstone National Park, WY (c) Jim Clark
Artesian Geyer - Firehole Lake Drive, Yellowstone National Park, WY (c) Jim Clark
Artesian Geyer - Firehole Lake Drive, Yellowstone National Park, WY (c) Jim Clark
Artesian Geyer - Firehole Lake Drive, Yellowstone National Park, WY (c) Jim Clark
Aspen Trunks - Yellowstone National Park, WY (c) Jim Clark
Aspen Trunks - Yellowstone National Park, WY (c) Jim Clark
Aspen Trunks - Yellowstone National Park, WY (c) Jim Clark
Summer Storm in Lamar Valley - Yellowstone National Park, WY (c) Jim Clark
Barronette Peak - Yellowstone National Park, WY (c) Jim Clark
Black Bear Cub - Blacktail Plateau - Yellowstone National Park, WY (c) Jim Clark
Black Bear Sow - Blacktail Plateau - Yellowstone National Park, WY (c) Jim Clark
Black Opal Pool - Biscuit Geyser Basin - Yellowstone National Park, WY (c) Jim Clark
Black Bear Sow - Blacktail Plateau - Yellowstone National Park, WY (c) Jim Clark
Boulders in pond near Lamar Valley - Yellowstone National Park, WY (c) Jim Clark
American Elk - Yellowstone National Park, WY (c) Jim Clark
American Elk - Yellowstone National Park, WY (c) Jim Clark
American Elk - Yellowstone National Park, WY (c) Jim Clark
American Elk - Yellowstone National Park, WY (c) Jim Clark
American Elk - Yellowstone National Park, WY (c) Jim Clark
American Elk - Yellowstone National Park, WY (c) Jim Clark
American Elk - Yellowstone National Park, WY (c) Jim Clark
American Elk - Yellowstone National Park, WY (c) Jim Clark
Bunsen Peak - Yellowstone National Park, WY (c) Jim Clark
Bunsen Peak - Yellowstone National Park, WY (c) Jim Clark
Scene near Dunraven Pass - Yellowstone National Park, WY (c) Jim Clark
Canary Spring - Mammoth Hot Springs - Yellowstone National Park, WY (c) Jim Clark
Canary Spring - Mammoth Hot Springs - Yellowstone National Park, WY (c) Jim Clark
Canyon Walls from Specimen Ridge - Yellowstone National Park, WY (c) Jim Clark
Yellowstone River from Specimen Ridge - Yellowstone National Park, WY (c) Jim Clark
Canyon Walls - Grand Canyon of the Yellowstone - Yellowstone National Park, WY (c) Jim Clark
Canyon Walls - Grand Canyon of the Yellowstone - Yellowstone National Park, WY (c) Jim Clark
Canyon Walls - Grand Canyon of the Yellowstone - Yellowstone National Park, WY (c) Jim Clark
Cascades along Gibbon River - Yellowstone National Park, WY (c) Jim Clark
Cascades along Yellowstone River - Yellowstone National Park, WY (c) Jim Clark
Chocolate Pots along Gibbon River - Yellowstone National Park, WY (c) Jim ClarkChocolate Pots along Gibbon River - Yellowstone National Park, WY (c) Jim Clark
Chocolate Pots along Gibbon River - Yellowstone National Park, WY (c) Jim Clark
Chocolate Pots along Gibbon River - Yellowstone National Park, WY (c) Jim Clark
Clepsydra Geyser - Lower Geyser Basin - Yellowstone National Park, WY (c) Jim Clark
Cliff Swallow - Lamar Valley - Yellowstone National Park, WY (c) Jim Clark
Cliff Swallow - Lamar Valley - Yellowstone National Park, WY (c) Jim Clark
Cliff Swallow Nests - Soda Butte - Yellowstone National Park, WY (c) Jim Clark
Cliff Swallow Nests - Soda Butte - Yellowstone National Park, WY (c) Jim Clark
Cliff Swallow Nests - Soda Butte - Yellowstone National Park, WY (c) Jim Clark
Common Cow Parsnip along Warm Creek - Yellowstone National Park, WY (c) Jim Clark
Early Morning View near Slough Creek - Yellowstone National Park, WY (c) Jim Clark
Douglas Fir and Boulders near Slough Creek - Yellowstone National Park, WY (c) Jim Clark
Downed Timber along Obsidian Creek - Yellowstone National Park, WY (c) Jim Clark
Summer Morning View near Tower Junction - Yellowstone National Park, WY (c) Jim Clark
Elk in Meadow - Yellowstone National Park, WY (c) Jim Clark
Gardner River - Yellowstone National Park, WY (c) Jim Clark
Gardner River - Yellowstone National Park, WY (c) Jim Clark
Cow Elk - Yellowstone National Park, WY (c) Jim Clark
Gardner River - Yellowstone National Park, WY (c) Jim Clark
Fountain Geyser - Lowe Geyser Basin - Yellowstone National Park, WY (c) Jim Clark
Gardner River - Yellowstone National Park, WY (c) Jim Clark
Gardner River - Yellowstone National Park, WY (c) Jim Clark
Gardner River - Yellowstone National Park, WY (c) Jim Clark
Gardner River - Yellowstone National Park, WY (c) Jim Clark
Gibbon Falls - Yellowstone National Park, WY (c) Jim Clark
Gardner River - Yellowstone National Park, WY (c) Jim Clark
Gibbon Falls - Yellowstone National Park, WY (c) Jim Clark
Gardner River - Yellowstone National Park, WY (c) Jim Clark
Gibbon River - Yellowstone National Park, WY (c) Jim Clark
Golden-mantled Ground Squirrel - Yellowstone National Park, WY (c) Jim Clark
Golden-mantled Ground Squirrel - Yellowstone National Park, WY (c) Jim Clark
Golden-mantled Ground Squirrel - Yellowstone National Park, WY (c) Jim Clark
Golden-mantled Ground Squirrel - Yellowstone National Park, WY (c) Jim Clark
Canyon Walls of the Grand Canyon of the Yellowstone - Yellowstone National Park, WY (c) Jim Clark
Grand Prismatic Spring - Yellowstone National Park, WY (c) Jim Clark
Grand Prismatic Spring - Yellowstone National Park, WY (c) Jim Clark
Grand Prismatic Spring - Yellowstone National Park, WY (c) Jim Clark
Green-winged Teal at Soda Butte - Yellowstone National Park, WY (c) Jim Clark
Summer View from Hayden Valley - Yellowstone National Park, WY (c) Jim Clark
Summer Scene from Slough Creek - Yellowstone National Park, WY (c) Jim Clark
Summer View from Lamar Valley - Yellowstone National Park, WY (c) Jim Clark
Summer View from Slough Creek - Yellowstone National Park, WY (c) Jim Clark
Summer View near Tower Junction - Yellowstone National Park, WY (c) Jim Clark
Summer Scene near Gardiner - Yellowstone National Park, WY (c) Jim Clark
Summer View from Lamar Valley - Yellowstone National Park, WY (c) Jim Clark
Summer View near Mammoth Hot Springs - Yellowstone National Park, WY (c) Jim Clark
Least Chipmunk - Yellowstone National Park, WY (c) Jim Clark
Summer Scene near Tower Junction - Yellowstone National Park, WY (c) Jim Clark
Cascades below Undine Falls - Yellowstone National Park, WY (c) Jim Clark
Ledge Geyser - Norris Geyser Basin - Yellowstone National Park, WY (c) Jim Clark
Ledge Geyser - Norris Geyser Basin - Yellowstone National Park, WY (c) Jim Clark
Lodge Pole Pine along Virginia Cascades Road - Yellowstone National Park, WY (c) Jim Clark
Conifer on Canyon Wall - Virginia Cascades Road - Yellowstone National Park, WY (c) Jim Clark
Yellowstone River at base of Lower Falls - Yellowstone National Park, WY (c) Jim Clark
Yellowstone River at base of Lower Falls - Yellowstone National Park, WY (c) Jim Clark
Lower Falls of the Yellowstone - Yellowstone National Park, WY (c) Jim Clark
Grand Canyon of the Yellowstone - Yellowstone National Park, WY (c) Jim Clark
Lower Falls of the Yellowstone - Yellowstone National Park, WY (c) Jim Clark
Morning Steam - Main Terrace - Mammoth Hot Springs - Yellowstone National Park, WY (c) Jim Clark
Morning Steam - Main Terrace - Mammoth Hot Springs - Yellowstone National Park, WY (c) Jim Clark
Main Terrace - Mammoth Hot Springs - Yellowstone National Park, WY (c) Jim Clark
Morning Steam - Main Terrace - Mammoth Hot Springs - Yellowstone National Park, WY (c) Jim Clark
Morning Steam - Main Terrace - Mammoth Hot Springs - Yellowstone National Park, WY (c) Jim Clark
Main Terrace - Mammoth Hot Springs - Yellowstone National Park, WY (c) Jim Clark
Main Terrace - Mammoth Hot Springs - Yellowstone National Park, WY (c) Jim Clark
Main Terrace - Mammoth Hot Springs - Yellowstone National Park, WY (c) Jim Clark
View of Mammoth Hot Springs from Main Terrace - Yellowstone National Park, WY (c) Jim Clark
Morning Scene along Obsidian Creek - Yellowstone National Park, WY (c) Jim Clark
Morning Scene along Obsidian Creek - Yellowstone National Park, WY (c) Jim Clark
August Moonrise - Yellowstone National Park, WY (c) Jim Clark
August Moonset - Yellowstone National Park, WY (c) Jim Clark
August Morning in Lamar Valley - Yellowstone National Park, WY (c) Jim Clark
Morning Storm Clouds near Tower Junction - Yellowstone National Park, WY (c) Jim Clark
August Morning near Tower Junction - Yellowstone National Park, WY (c) Jim Clark
August Morning near Tower Junction - Yellowstone National Park, WY (c) Jim Clark
Norris Geyser Basin - Yellowstone National Park, WY (c) Jim Clark
Norris Geyser Basin - Yellowstone National Park, WY (c) Jim Clark
Nymph Lake - Yellowstone National Park, WY (c) Jim Clark
Mule Deer - Yellowstone National Park, WY (c) Jim Clark
Obsidian Creek - Yellowstone National Park, WY (c) Jim Clark
Opal Geyser - Midway Geyser Basin - Yellowstone National Park, WY (c) Jim Clark
Pebble Creek - Lamar Valley - Yellowstone National Park, WY (c) Jim Clark
Pebble Creek - Lamar Valley - Yellowstone National Park, WY (c) Jim Clark
Porcelain Basin - Norris Geyser Basin - Yellowstone National Park WY (c) Jim Clark
Porcelain Basin - Norris Geyser Basin - Yellowstone National Park WY (c) Jim Clark
Porcelain Basin - Norris Geyser Basin - Yellowstone National Park WY (c) Jim Clark
Pronghorn Buck - Yellowstone National Park, WY (c) Jim Clark
Pronghorn Buck - Yellowstone National Park, WY (c) Jim Clark
Pronghorn Buck - Yellowstone National Park, WY (c) Jim Clark
Pronghorn Buck - Yellowstone National Park, WY (c) Jim Clark
Pronghorn Buck - Yellowstone National Park, WY (c) Jim Clark
Red Squirrel - Blacktail Plateau - Yellowstone National Park, WY (c) Jim Clark
Rock Formation - Soda Butte - Yellowstone National Park, WY (c) Jim Clark
Ruby-crowned Kinglet - Otter Creek - Yellowstone National Park, WY (c) Jim Clark
Roaring Mountain - Yellowstone National Park, WY (c) Jim Clark
Roaring Mountain - Yellowstone National Park, WY (c) Jim Clark
Rustic Falls - Yellowstone National Park, WY (c) Jim Clark
Rustic Falls - Yellowstone National Park, WY (c) Jim Clark
Rustic Falls - Yellowstone National Park, WY (c) Jim Clark
Gibbon River - Yellowstone National Park, WY (c) Jim Clark
Summer Scene in Lamar Valley - Yellowstone National Park, WY (c) Jim Clark
Summer Scene in Lamar Valley - Yellowstone National Park, WY (c) Jim Clark
Summer Scene in Lamar Valley - Yellowstone National Park, WY (c) Jim Clark
Silex Spring - Lower Geyser Basin- Yellowstone National Park, WY (c) Jim Clark
Silex Spring - Lower Geyser Basin- Yellowstone National Park, WY (c) Jim Clark
Morning Scene along Obsidian Creek - Yellowstone National Park, WY (c) Jim Clark
Soda Butte Creek - Yellowstone National Park, WY (c) Jim Clark
Soda Butte Creek - Yellowstone National Park, WY (c) Jim Clark
August Morning - Lamar Valley - Yellowstone National Park, WY (c) Jim Clark
August Morning - Lamar Valley - Yellowstone National Park, WY (c) Jim Clark
Sunset from Blacktail Plateau - Yellowstone National Park, WY (c) Jim Clark
Sunset from Blacktail Plateau - Yellowstone National Park, WY (c) Jim Clark
Thermals along Yellowstone River - Hayden Valley - Yellowstone National Park, WY (c) Jim Clark
Thermals along Yellowstone River - Hayden Valley - Yellowstone National Park, WY (c) Jim Clark
Thermal Runoff -Midway Geyser Basin - Yellowstone National Park, WY (c) Jim Clark
Thermal Runoff -Midway Geyser Basin - Yellowstone National Park, WY (c) Jim Clark
Tourists at Norris Geyser Basin - Yellowstone National Park, WY(c) Jim Clark
View from under Soda Butte - Yellowstone National Park, WY (c) Jim Clark
Undine Falls - Yellowstone National Park, WY (c) Jim Clark
Undine Falls - Yellowstone National Park, WY (c) Jim Clark
Undine Falls - Yellowstone National Park, WY (c) Jim Clark
View from Specimen Ridge - Yellowstone National Park, WY (c) Jim Clark
Water Lilies and Log - Twin Lakes North - Yellowstone National Park, WY (c) Jim Clark
Summer Vista from Slough Creek - Yellowstone National Park, WY (c) Jim Clark