Jeff originally wrote The Yellowstone Winter Guide in 1990, and has revised it periodically since then. The conveniently sized book is small enough to fit into a pocket of a parka, and includes information about the history of the park, its famous wildlife in winter, winter photography tips, mile by mile descriptions of park roads and ski trails in winter, and much more. The book is lavishly illustrated by Jeff's stunning photographs, which were collected during his 44 winters in Yellowstone.