Preliminary geologic map of the Collbran Quadrangle, Mesa County, Colorado

Summary geochemical and generalized geologic maps of the Springfield 1 degree by 2 degrees Quadrangle and adjacent area, Missouri

Radiometric ages of basement rocks in the northern Midcontinent, U.S.A.

Median-permeability contour maps of the J sandstone, Dakota Group, in the Denver Basin, Colorado, Nebraska, and Wyoming

Aeromagnetic map of the Holy Cross Wilderness Area, Eagle, Lake, and Pitkin counties, Colorado

Geologic map of the Roberts Wilderness Study Area, Eureka County, Nevada

Correlation of coal beds in the Fruitland Formation as interpreted from geophysical logs, east-central San Juan County, New Mexico

Metallogenic map of significant volcanogenic massive-sulfide and related lode deposits in Alaska

Mineral resource potential map of the Pigeon Canyon, Nevershine Mesa, and Snap Point Wilderness Study Areas, Mohave County, Arizona

Maps showing the coal geology of the Sarpy Creek area, Big Horn and Treasure counties, Montana

Preliminary map showing the thickness of glacial deposits in Ohio

Preliminary geologic map of the Tanner Lake Quadrangle, San Juan County, New Mexico

Map showing areas of limonitic hydrothermal alteration in the Lake City Caldera area, western San Juan Mountains, Colorado

Bouguer gravity anomaly and isostatic residual gravity maps of the Tonopah 1 degree by 2 degrees Quadrangle, central Nevada

Geology and mineral resources potential of the Billies Bay, Alexander Springs, Little Lake George, and Juniper Prairie Wildernesses, and the Baptist Lake Roadless area, Lake, Marion, and Putnam counties, Florida