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Data Sources
Topo
Ecoregions
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BASEMAPS
Default Weather
Temperature
Smoke
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WEATHER
Minturn Fm in west-central and south-central and other units (COPAm;0)
Geologic Formation
in
CO
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Lithology
Conglomerate
Shale
Arkose
Other
(615 mi²)
Geologic Age
Pennsylvanian (323.6 Ma – 299.05 Ma ago)
Geologic Unit Label
PAm
Arkosic sandstone, conglomerate, shale, and limestone. Includes Madera Fm and Sharpsdale Fm of Chronic (1958) in Sangre de Cristo Range and Gothic Fm of Langenheim (1952) in Elk Mountains. Other units of Middle Pennsylvanian age.
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USGS
Taxonomy
Classified As
Geologic Formation
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