- Charles S. Robinson and Associates, Inc. 1977. Maps of Potential
Geologic Hazards and Surficial Deposits. Golden,
Colorado. Scale 1:24000.*
- http://geosurvey.state.co.us/.
Colorado Geological Survey.
- Dames&Moore. 1985. Colorado Springs Subsidence Investigation.
Volume I. State of Colorado Division of Mined Land Reclamation.*
- Galloway, Devin, Jones, David R. and Ingebritsen, S.E. editors.
1999. Land Subsidence
in the United States. U.S.
geological Survey Circular; 1182.
U.S. Department of the Interior.
- Hart, S.S., 1974. Potentially Swelling Soils and Rock in the Front
Range Corridor, Colorado. Colorado geologic Survey
- Hatton, Tom and Turney, J.E., complied by.
1989. Annotated
Bibliography of Subsidence Studies over Abandoned Coal Mines in Colorado.
Colorado Geological Survey, Department of Natural Resources,
Denver, Colorado.
- John Himmelreich, Engineering Geologist, Colorado Springs
- http://www.ftw.nrcs.usda.gov/ssur_data.html.
National SSURGO Database.
USDA-NRCS Soil Survey Division.
- Scott, G.R. and Wobus, R.A. 1973. Reconnaissance Geologic Map of
Colorado Springs and Vicinity, Colorado. U.S. Geological Survey,
Miscellaneous Field Studies Map MF-482. Scale 1:62500.
- Soil Survey of El Paso County Area, Colorado. 1981. United
States Department of Agriculture Soil Conservation Service
- http://www.ftw.nrcs.usda.gov/ssur_data.html
SSURGO Soils polygons for El Paso County
- Trimble, D.E. and Machette, M.N. 1979. Geologic Map of the Colorado
Springs-Castle Rock Area, Front Range Urban Corridor, Colorado.
U.S. Geological Survey, Miscellaneous Investigations. Series Map
I-857-F. Scale 1:100000.
|