Named the Wildcat Valley Sandstone for Wildcat Valley, Wise Co., VA. Consists of a calcareous sandstone that was previously called part of the Helderberg Limestone. Unit overlies the Hancock Limestone and underlies the Chattanooga Shale. The Wildcat Valley is of Devonian age.

Source: GNU records (USGS DDS-6; Reston GNULEX).

The Wildcat Valley Sandstone may possibly extend from southwestern VA into northeastern TN.

Source: GNU records (USGS DDS-6; Reston GNULEX).

Wildcat Valley Sandstone crops out in Powell Valley and can be traced in the subsurface throughout southwestern VA. Thickness ranges from 30 to 150 ft. Contains a variety of lithologies. At the type locality, the formation consists of very fine to fine-grained, calcareous sandstone with abundant fossils and white chert. Northward, the formation becomes a light gray to white fine-grained limestone with chert and fossils interbedded with fine grained white calcareous sandstone underlain by light-brown, fine-grained limestone. Disconformably overlies the Late Silurian Hancock Limestone and disconformably underlies the Late Devonian lower black shale member of the Chattanooga Shale. Based on paleontologic data and the stratigraphic cross sections, the boundary between the Ulsterian and Erian Series is placed approximately 10 ft below the top of the Wildcat Valley Sandstone. Therefore, the Wildcat Valley of this report is Early and Middle Devonian.

Source: GNU records (USGS DDS-6; Reston GNULEX).