Knepper, Daniel H., Jr.

About the author


Spatial Geologic Data Model for the Gunnison, Grand Mesa, Uncompahgre National Forests Mineral Resource Assessment Area, Southwestern Colorado and Digital Data for the Leadville, Montrose, Durango, and Colorado Parts of the Grand Junction, Moab, and Cortez 1° X 2° Geologic Maps

Spatial Geologic Data Model for the Gunnison, Grand Mesa, Uncompahgre National Forests Mineral Resource Assessment Area, Southwestern Colorado and Arc/Info versions of the Leadville, Durangeo and Montrose 2 degree quadrangles as well as the Colorado half

Evolution of the landscape along the Clear Creek Corridor, Colorado--Urbanization, aggregate mining, and reclamation

Prime agricultural land along the Clear Creek floodplain, Colorado, attracted settlement in the 1850's but the demand for sand and gravel for 1900's construction initiated a sequence of events that exceeded previous interests and created the modified land

Distribution and quality of potential sources of aggregate infrastructure resources project area, Colorado-Wyoming

Crushed stone and sand and gravel are the main types of natural aggregate used in the United States. Aggregate is used in nearly all residential, commercial, and industrial building construction, and in most public works projects including roads and high

Geologic map of the Saint Joseph area, Missouri and Kansas

The map shows the surficial geology, including alluvium, loess, till, terrace alluvium, eolian silt, glaciofluvial gravel, and bedrock outcrops in the area around St. Joseph, Missouri.