Harding Sandstone
Geologic formation in Colorado, US
Summary
The Harding Sandstone is a geologic formation in Colorado. It preserves fossils dating back to the Ordovician period.
Modified
4/29/2026, 11:02:56 PM
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Geologic formation in Colorado, US
The Harding Sandstone is a geologic formation in Colorado. It preserves fossils dating back to the Ordovician period.
Modified
4/29/2026, 11:02:56 PM
