Laurel Hill, also known as Laurel Ridge or Laurel Mountain, is a 70-mile-long (110 km) mountain in Pennsylvania's Allegheny Mountains. This ridge is flanked by Negro Mountain to its east and Chestnut Ridge to its west. The mountain is home to six state parks: Laurel Ridge State Park, Laurel Mountain State Park, Linn Run State Park, Kooser State Park, Laurel Hill State Park, and Ohiopyle State Park. The 70-mile-long (110 km) Laurel Highlands Hiking Trail runs the length of the ridge.