Pennsylvania Route 25 (PA 25) is a 35-mile-long (56 km) state highway located in Dauphin and Schuylkill counties in central Pennsylvania. The western terminus of the route is at U.S. Route 209 (US 209) in Millersburg. The eastern terminus is at US 209 in Newtown. PA 25 runs parallel to the Mahantongo Mountains and the Mahantango Valley, as well as US 209, for its entire length. The route passes through the communities of Berrysburg, Gratz, Sacramento, and Hegins. PA 25 intersects PA 225 in Berrysburg, PA 125 in Hegins, and Interstate 81 (I-81) in Frailey Township. PA 25 was designated in 1928 to run from US 209 in Millersburg east to PA 443 in Pine Grove, running east to Hegins before heading southeast to Tremont and south to Pine Grove. The road between Hegins and Newtown was designated a