 The southern end of this feature extends west along U.S. Route 422 and the southeastern border of Berks County, providing views of Blue Mountain (to the north), Mount Penn (which comprises part of the prong), and the city of Reading, to the east.The southernmost peaks were at one time home to many exclusive sanitariums and resorts, now all defunct except for the Caron Foundation.South Mountain serves as the transmitter site for local radio and television stations; independent TV station WFMZ-TV 69 has both its transmitter and studio facilities based on the mountain.