Retracing a historical adventure: Journal, book recount 1907 Yellowstone roadtrip from Butte - The Spokesman-Review - 2/26/2023 Retracing a historical adventure: Journal, book recount 1907 Yellowstone roadtrip from Butte
Anticipating where future thermal areas may develop in Yellowstone National Park - Yellowstone Volcano Observatory - 5/08/2025 Link »
