View an image of the Stansbury Terrace level of Lake Bonneville. The gradual warming of the earth increased evaporation and decreased precipitation, causing the lake level to drop another 300 feet from the Provo level, where it stabilized at the Stansbury level. This image is extracted from the 22-part video series The Geography of Utah, conceived and written by Albert L. Fisher, PhD of the University of Utah. The series encompasses the political, cultural, historical and sociological geography of the state of Utah. It describes the activities, the land, and the people. Much of the video material was videotaped on location throughout the state of Utah, giving the student and interested viewer valuable field trip experiences.