Article · Wikipedia archive · Last revised Jul 30, 2026

Harding Sandstone

The Harding Sandstone is a geologic formation in Colorado. It preserves fossils dating back to the Ordovician period.

Last revised
Jul 30, 2026
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≈ 1 min
Length
81 w
Citations
Source
Harding Sandstone
Stratigraphic range: Ordovician
TypeFormation
UnderliesFremont Formation
OverliesManitou Limestone
Thickness26 to 46 m (85 to 151 ft)
Lithology
PrimarySandstone
OtherSiltstone, shale
Location
RegionCentral Colorado
CountryUnited States
Type section
Named forHarding’s quarry, Fremont County
Named byCharles D. Walcott (1892)

The Harding Sandstone is a geologic formation in Colorado. It preserves fossils dating back to the Ordovician period.

See also

See also

References

References