Thompson Firehole River 228 Yellowstone May 29, 1932. Trip today was from Mammoth to Firehole River by the Buffalo Skull pool. We left about 10:00AM. Consequently no elk, deer, nor moose were seen en route to the Firehole. But as we returned late at dusk we saw 4moose, 1 along the Gibbon just a few miles east of Madison Junction, 2 in Elk Park near Norris, and 1 in Willow Park near Obsidian Cliff. Since, at other times we have seen 7 moose all together in Willow Park these other 3 seen along the Gibbon are probably different animals. If it had not been so late, we might have seen more in Willow Park. But a tentative estimate of 112moose is here made of the population along the route traversed. Bands of elk were seen in all the meadows from Buffalo Pool to Mammoth, seen from 5:00PM to 10:00PM, which indicates that the elk are fairly well scattered now. Two deer/does, were seen in the sage flats between Swan Lake & Obsid. Cliff. They were very wild, in fine condition, & disappeared across Obsidian Creek, trotting beautifully. They were so much more attractive!