Blowing Rock is a town in North Carolina, USA, situated in both Caldwell and Watauga counties. However, during the summer the town's population increases to about 10,000. The Caldwell County portion of Blowing Rock is part of the HickoryLenoirMorganton Metropolitan Statistical Area, while the Watauga County portion is part of the Boone Micropolitan Statistical Area. The town of Blowing Rock takes its name from an unusual rock formation which juts over 1,500 feet (460 m) above the Johns River gorge. Due to the rock's shape and size, wind currents from the gorge often blow vertically, causing light objects to float upwards into the sky. Blowing Rock is also near Appalachian Ski Mountain.