From Purpose and Scope: "The Marble Canyon Quadrangle (2º), an area of 20,634 km2, is in northeastern Arizona (Fig. 1). The quadrangle was evaluated to a depth of 1500 m to identify geologic environments and delineate areas that exhibit characteristics favorable for the occurrence of uranium deposits. Favorable environments, as determined by surface and subsurface investigation, are those that could contain uranium deposits of at least 100 tons U3O8 in rocks with an average grade not less than 100 ppm U3O8. Work on the Marble Canyon Quadrangle began March 6, 1979, and ended February 29, 1980."

Appendices containing survey data of the Marble Canyon Quadrangle in northeast Arizona for uranium availability to accompany a report on national uranium resources in Arizona and Utah.