Author: Fallyn

5 Unique Fossil Finds at Fossil Butte National Monument

52 million years ago, Fossil Lake covered 1500 square miles of Wyoming, Utah, and Nevada. As time passed, plants and animals settled into the lakebed, where they were preserved in limestone. The former Fossil Lake region, now called the Green River Formation, yields tens of thousands of fossils each year.  In 1972, Fossil Butte National […]