The Pine Hall Formation of the Dan River Group is here named for tan and red-brown intertonguing sandstone, siltstone, and conglomerate facies on the southeastern side of the Dan River basin, NC. It unconformably overlies or is in fault contact with older metamorphic rocks and gradationally underlies or interfingers with the Cow Branch Formation. Arbitrary contacts are drawn between the Pine Hall and the overlying Stoneville where the Cow Branch is absent. Correlations are drawn between the siltstone facies and the Cascade Station Member of the Leakesville Formation of Meyertons (1963); the sandstone facies and the Dry Fork Formation of Meyertons (1963); and the conglomerate facies and the Cedar Forest Formation of Meyertons (1963). Thickness ranges from 250 ft (76 m) in the south to 7,000 ft (2100 m) in the north. Age is Late Triassic.

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

In the southwestern part of the Brosville quadrangle, Danville basin, Virginia, Triassic rocks are divided into the Pine Hall, Cow Branch, and Stoneville Formations, which are here extended into the Danville basin from the Dan River basin in North Carolina. The Cow Branch forms the reference beds for this division of rocks, and where it is absent there is no basis for distinguishing more than a single unit, the Dry Fork Formation, which is equivalent to the Pine Hall and Stoneville undivided.

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