Niobian rutile from the McGuire granitic pegmatite, Park County, Colorado; solid solution, exsolution, and oxidation

Cupropavonite from Hall's Valley, Park County, Colorado

Redescription and New Nomenclature of Manitou Formation, Colorado: GEOLOGICAL NOTES

A coprolite horizon in the Pennsylvanian of Chaffee and Park counties, Colorado

Tectonics of Eastern Flank and Foothills of Front Range, Colorado

Geochemistry and tectonic setting of Paleoproterozoic metavolcanic rocks of the southern Front Range, lower Arkansas River Canyon and northern Wet Mountains, central Colorado

Tectonic evolution of the Proterozoic Colorado province, Southern Rocky Mountains : A summary and appraisal

Interacting geomorphic and ecological response of step-pool streams after wildfire

Crystal growth mechanisms in miarolitic cavities in the Lake George ring complex and vicinity, Colorado

Comments on the genus Amyzon (family Catostomidae)

Geochemistry of high-potassium rocks from the mid-Tertiary Guffey volcanic center, Thirtynine Mile volcanic field, central Colorado

Evolution of the Early Proterozoic Colorado province: Constraints from U-Pb geochronology

Problems of using rock volume data in predictive resource studies

Growth zoning in tetrahedrite-tennantite from the Hock Hocking Mine, Alma, Colorado

Mineral exploration with Skylab photography in central Colorado

Morphology and the role of landsliding in formation of some rock glaciers in the Mosquito Range, Colorado

The significance of fission-track ages of apatite in relation to the tectonic history of the Front and Sawatch Ranges, Colorado

Structure, petrology, and petrogenesis of the Treasurevault stock, Mosquito Range, Colorado

New data on schirmerite

Oligocene lake deposits in central Colorado and a new fossil insect locality