Writing a biography about John Colter, who left behind no journal, letters or other reminiscences, was the daunting task of Ronald M. Angelin and Larry E. Morris in Gloomy Terrors and Hidden Fires: The Mystery of John Colter and Yellowstone.
Despite the title, fully half of the book deals with Colter’s earlier years in the West with the Lewis and Clark Expedition and his career as a trapper. It is a fine addition to the annals of the fur trade, less so a true biography of Colter, proving the man is really very elusive in the historical record.
—Candy Moulton author of Forts, Fights & Frontier Sites: Wyoming Historic Locations