Knob Mountain, or Nob Mountain, is a prominent forested ridge in northeastern Columbia County, Pennsylvania, extending into Luzerne County and rising more than 1,720 feet above sea level. Running roughly 10 to 12 miles eastward from near Orangeville, it is one of the county’s highest points and long served as a striking landmark visible from places including Bloomsburg. Its steep slopes, sandstone summit, moraine, coal-bearing setting, and red shale basin make it geologically notable. The mountain also figured in local movement and settlement: an Indigenous path and later the Susquehanna and Tioga Turnpike crossed it, and settlement around Fishing Creek began in 1780 before a community formed at its base in 1822.