Skip to main content
U.S. flag

An official website of the United States government

Digital drillhole lithologic data and a radiocarbon age -- data supporting interpretation of Quaternary depositional history in the vicinity of Fort Morgan, Eastern Colorado

Published by U.S. Geological Survey | Department of the Interior | Catalog Last Checked: May 05, 2026 at 09:20 PM | Dataset Last Updated: February 27, 2026 at 12:00 AM
This data release contains digital location and downhole lithologic data for 3,564 drillholes from along a portion of the South Platte River in eastern Colorado. The drillholes are located within the east half of the Greeley and the west half of the Fort Morgan USGS 1:100,000 scale maps. Subsurface lithologic data is intended to extend the results of surficial geologic mapping to the subsurface to reconstruct the depositional history of the Quaternary sediments in the study area. Well locations are provided as point data in a geospatial shapefile; location and the lithologic data from downhole intervals in each borehole are tabulated in spreadsheet form. Also included is a single radiocarbon date from collagen taken from a bone sample in a core acquired by the USGS for this study. The spatial data are accompanied by a Data Dictionary that duplicates the Entity and Attribute information contained in the metadata file.

Resources

2 resources available

Find Related Datasets

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov