Inside the guidebook Janet shares many anecdotes about the human history of the Yellowstone area, from prospector Jack Baronett who built a wooden toll bridge in 1871 to tourist Hazel Decker who camped in her car for 52 days to observe Steamboat Geyser. In the road logs she discusses the evidence of prehistoric peoples and the recent discoveries scientists have made at the bottom of Yellowstone Lake using a submersible robot. She compiled a time line of many of the important events in the Yellowstone area and the world in a chapter of Yellowstone Treasures called “Chronology: Yellowstone Since 1800,” which takes readers from the Lewis and Clark expedition up to the present day.
But when she and I were creating the first edition of the book in 2001 it became necessary to cut pages from the manuscript and restrict the time line to the most recent couple of hundred years of human history, even though the geological history of the region goes way back before that. Her Geological Time Line, which you can read right here on this website, extends all the way from Earth’s formation 4.6 billion years ago, through the time the Absaroka Range volcanoes formed 53 to 44 million years ago, to the time 12,000 years ago when glaciers last covered Yellowstone. This last episode was the Pinedale Glaciation, evident throughout the lower Lamar Canyon.
Thanks for spending the time with us,
Credit: Photo courtesy of the U.S. Department of the Interior, National Park Service, Yellowstone National Park.