Bob Patton:
Lower Yellowstone Falls
Bob Patton:
Firehole Valley and River-7362
Bob Patton:
Calcite Springs-7524
Bob Patton:
Yellowstone-7351
Bob Patton:
Boiling Spring at Yellowstone-7350
Bob Patton:
Yellowstone-7352
Bob Patton:
Yellowstone-7355
Bob Patton:
Cave Falls, Fall River, Yellowstone NP 9-25-2016-9984