Multiple episodes of diapirism, probably salt-generated, have determined the structural pattern of central Utah. The causative salt and other evaporites are integral components of the Arapien Shale of Middle Jurassic age, one of the most unusual stratigraphic units in central Utah.

Prepared on behalf of the U.S. Atomic Energy Commission and published with the permission of the Commission.

A study of the Quaternary geology of part of northeastern Montana and northwestern North Dakota.

A description of the stratigraphy, structure, and surficial deposits in a 15-minute quadrangle that includes the meizoseismal area of the Hebgen Lake earthquake of August 17, 1959.