James Prosek, Yellowstone Cutthroat Trout & Indian Paintbrush, watercolor/graphite, 16 x 23. ← Previous Next → James Prosek, Yellowstone Cutthroat Trout & Indian Paintbrush, watercolor/graphite, 16 x 23. James Prosek, Yellowstone Cutthroat Trout & Indian Paintbrush, watercolor/graphite, 16 x 23.