Harding Sandstone
The Harding Sandstone is a geologic formation in Colorado. It preserves fossils dating back to the Ordovician period.
| Harding Sandstone | |
|---|---|
| Stratigraphic range: Ordovician | |
| Type | Formation |
| Underlies | Fremont Formation |
| Overlies | Manitou Limestone |
| Thickness | 26 to 46 m (85 to 151 ft) |
| Lithology | |
| Primary | Sandstone |
| Other | Siltstone, shale |
| Location | |
| Region | Central Colorado |
| Country | United States |
| Type section | |
| Named for | Harding’s quarry, Fremont County |
| Named by | Charles D. Walcott (1892) |
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