This paper is intended to present, in summary fashion, some of the results of stratigraphic work by the senior author in the Wasatch Plateau of Utah. In this study he has had the advantage of extensive conference, both in the field and in the office, with the junior author, who contributes to the paper the paleontologie part of the work and many of the comparisons with other regions.
The Wasatch Plateau lies in central Utah. It is the northeastern unit of the great group of high plateaus that borders the northern part of the Colorado Plateau on the west and separates it from the Great Basin. The plateau is a fairly well-defined tableland, about 90 miles long and 20 to 30 miles broad, whose summits commonly reach elevations 10,000 to 11,000 feet above sealevel and 5,000 to 6,000 feet above Castle . . .