Solution-collapse breccia pipes of Spanish Valley, southeastern Utah

Gordon Whitney Weir

Mineral-resource potential of the Grand Gulch instant study area, San Juan County, Utah

Gordon Whitney Weir

Borden Formation (Mississippian) in south- and southeast-central Kentucky

Gordon Whitney Weir

Calloway Creek limestone and Ashlock and Drakes Formations (upper Ordovician) in south-central Kentucky

Gordon Whitney Weir

Clays Ferry Formation (Ordovician)

Gordon Whitney Weir

Geologic map of the Hatch Rock quadrangle, San Juan County, Utah

Gordon Whitney Weir

Geologic map of the Long Valley quadrangle, Coconino County, Arizona

Gordon Whitney Weir

Geologic map of the Woodstock quadrangle, south-central Kentucky

Gordon Whitney Weir

Incomplete manuscript on stratigraphy and structural geology and uranium-vanadium and copper deposits of the Lisbon Valley area, Utah-Colorado

Gordon Whitney Weir

Lithostratigraphy of upper Ordovician strata exposed in Kentucky

Gordon Whitney Weir

Mineral resources of the Escalante Canyon Instant Study Area, Garfield County, Utah

Gordon Whitney Weir

Mineral resources of the Phipps-Death Hollow Instant Study Area, Garfield County, Utah

Gordon Whitney Weir

Geologic Map of the Halls Gap Quadrangle, Lincoln County, Kentucky

United States Geological Survey

Geologic map of the Lancaster quadrangle, Lincoln and Garrard Counties, Kentucky

United States Geological Survey

Geologic map of the Paint Lick quadrangle, east-central Kentucky

United States Geological Survey

Geologic map of the Bighill quadrangle, east-central Kentucky

United States Geological Survey