15-4135
Grand Canyon of the Yellowstone, Yellowstone Natl Park
15-4132
15-4138
15-4141
15-4139
Old Faithful, Yellowstone Natl Park
15-4152
15-4198
Yellowstone Natl Park
15-4203
15-4199
15-4205
15-4204
15-4210
Yellowstone Natl Park, Grand Prismatic Spring
15-4212
15-4207
15-4213
15-4215
15-4219
15-4221
15-4216
15-4227
15-4223
Firehole River, Yellowstone Natl Park
15-4239
Excelsior Geyser Crater, Yellowstone Natl Park
15-4233
Cygnus Buccinator, Trumpeter Swans, Yellowstone Natl Park
15-4254
Cervus elaphus, Elk, Yellowstone Natl Park
15-4240
15-4244
