From introduction: "Report based chiefly on the field work prosecuted during 1905, 1906, 1907, and 1909. It is primarily a characterization of the several major distribution areas or life zones."

Report discussing uranium oxides, their thermodynamic relations, and how these relations connect to the oxidation states of uranium ores found at the Colorado Plateaus. This report provides information regarding thermodynamic properties of some compounds and ions of the U-O-H2O system, discussion and interpretation of thermodynamic properties, and a summary with conclusion.

A report regarding a geological survey of the Wet Mountains, Colorado. Concerns work done on behalf of the Division of Raw Materials of the U.S. Atomic Energy Commission.

The story of the advancing American frontier has unending interest. Perhaps one of the most colorful and unusual frontier developments was that of the mining frontier in the Rocky Mountains of Colorado. During the years following the discovery of gold in 1858 and the early 1880's occurred an almost unprecedented evolution from a primitive pioneer society to complex industrial development.

A draft resource management plan (RMP) and environmental impact statement (EIS) to amend the management of over 700,000 acres of BLM land in Coronado and Utah for the preservation of the Gunnison Sage-Grouse (GUSG), a threatened species under the endangered Species Act (ESA).