Dan River Group

The Dan River Group is a geologic group in Virginia and North Carolina. It preserves fossils dating back to the Triassic period.

It contains five geological formations, from youngest to oldest:


 * Stoneville Formation (cyclical red mudstone)
 * Cow Branch Formation (cyclical fossiliferous black/dark grey mudstone with rare coarser lithologies)
 * Dry Fork Formation (cyclical tan/red sandstone and grey/purple/red mudstone)
 * Walnut Cove Formation (cyclical black/grey mudstone, sandstone, and coal)
 * Pine Hall Formation (coarse tan sandstone and red mudstone)