Sea-floor observations and subbottom seismic characteristics of OAK and KOA craters, Enewetak Atoll, Marshall Islands

Petrographic and scanning electron microscope studies of samples from the Roberts Mountains and Popovich formations, Carlin Mine area, Eureka County, Nevada

The Beringian ancestry of Phenacomys (Rodentia; Cricetidae) and the beginning of the modern Arctic Ocean borderland biota

THE POTENTIAL OF BRECCIA PIPES IN THE MOHAWK CANYON AREA, HUALAPAI INDIAN RESERVATION, ARIZONA

Mineral resources of the Big Horn Mountains Wilderness Study Area, Maricopa County, Arizona

Mineral resources of the Baboquivari Peak and Coyote Mountains Wilderness Study Areas, Pima County, Arizona

Mineral resources of the Black Rock Wilderness Study Area, Graham County, Arizona

Mineral resources of the Gibraltar Mountain and Planet Peak Wilderness Study Areas, La Paz County, Arizona

Mineral resources of the Pinnacles Wilderness Contiguous Wilderness Study Area, Monterey and San Benito counties, California

Mineral resources of the Twin Peaks Wilderness Study Area, Washoe County, Nevada, and Lassen County, California

Mineral resources of the South Warner Contiguous Wilderness Study Area, Modoc County, California

Mineral resources of the Mecca Hills Wilderness Study Area, Riverside County, California

Mineral resources of the Palen-McCoy Wilderness Study Area, Riverside County, California

Mineral resources of the Gunnison Gorge Wilderness Study Area, Montrose and Delta counties, Colorado

Mineral resources of the American Flats Wilderness Study Area, Ouray and Hinsdale counties, Colorado