Detailed discussions of Devonian stratigraphy in Western Montana, Correspondence to designate the Cottonwood Canyon Member of the Madison, Maps and Cross-Sections.

Detailed discussions of Devonian stratigraphy in western Montana; correspondence to designate the Cottonwood Canyon Member of the Madison; maps and cross-sections.

February 6, 1974 Correspondence about Pierce's 2-6-74 lecture on Heart Mountain there.

November 5-8, 1979 Reservations; abstract of Clastic dikes of Heart Mountain Fault breccia, northwest Wyoming and their significance; meeting program.

November 5-8, 1979 Correspondence.

Correspondence Assisting an Italian Geologist find a job in the United States.

Reference list and brief correspondence.

Correspondence on geologic hazards for a road over Dead Indian Hill.

Correspondence on the geologic evaluation Pierce did on the mineral resources of some of Nancy-Carroll Draper's property.

Slee's business card with note saying Pierce sent him a copy of a 1991 paper. There is an iridescent stone attached to the card (opal?).