Mill Hall is a borough in Clinton County, Pennsylvania, United States.

[3] The Nathan Harvey House was listed on the National Register of Historic Places in 1985.

[4] Mill Hall is located in southern Clinton County at 41°6′23″N 77°29′16″W / 41.10639°N 77.48778°W / 41.10639; -77.48778 (41.105359, -77.487804),[5] on both sides of Fishing Creek between its exit from a water gap through Bald Eagle Mountain to the south and its mouth at Bald Eagle Creek to the north.

U.S. Route 220, a four-lane freeway, follows Fishing Creek through the Bald Eagle Mountain water gap and crosses the southeastern corner of Mill Hall, with access from Exit 109.

Via PA 150, it is 3 miles (5 km) northeast to Lock Haven, the Clinton County seat.