Juniata County is a county located in the U.S. state of Pennsylvania. At the 2010 census, the population was 24,636. Its county seat is Mifflintown. The county was created on March 2, 1831, from part of Mifflin County and named for the Juniata River.
Mountains in Juniata County include Tuscarora Mountain and Shade Mountain. Agricultural land and forested land make up most of the county's area. Major rivers and creeks in the county include the Susquehanna River, the Juniata River, Tuscarora Creek, and West Branch Mahantango Creek. It borders seven other counties. The county lies over 16 different rock formations and 51 different soils.
Wikipedia https://en.wikipedia.org/wiki/Juniata_County,_Pennsylvania
Coordinates 40°34'11.278" N -77°23'48.962" E