Johnson Run Natural Area is a 216-acre (87 ha) nature preserve located in Cameron County, Pennsylvania. The topography consists of a rugged, bouldered plateau dissected by steep-sided streams and covered with somewhere from 26 acres (11 ha) to 50 acres (20 ha) of old-growth forest containing Eastern Hemlock and Eastern White Pine. Some of the white pines are nearly 4 feet (120 cm) in diameter at breast height.

Johnson Run Natural Area
IUCN category V (protected landscape/seascape)
Location	Cameron County, Pennsylvania
Nearest city	Driftwood, Pennsylvania
Coordinates	41°21′32″N 78°07′09″W / 41.3590°N 78.1191°W / 41.3590; -78.1191[1]
Area	216 acres (87 ha)
www.dcnr.state.pa.us/FORESTRY/oldgrowth/johnsonrun.aspx