March 1, 1872 — March 1, 2022
“For the first time in my life, I slept out in the open air. During the night it rained a little but not enough to wet us to any extent. Got up early enough in the morning to get our breakfast, and commence photographing as soon as the sun rose.”
From the diary of artist Thomas Moran, a part of the Hayden expedition, set to explore and survey sources of the Missouri and Yellowstone Rivers in 1871. The U.S. Congress established Yellowstone National Park six months after the expedition.
