Fishing Creek has several major tributaries and numerous minor ones. The major tributaries are Hemlock Creek, Little Fishing Creek, Green Creek, Huntington Creek, and the East and West Branch Fishing Creeks. West Branch Fishing Creek rises on North Mountain and flows east into Fishing Creek. East Branch Fishing Creek is a tributary that starts on North Mountain in Sullivan County and is approximately long. Huntington Creek starts in State Game Lands number 57 and heads southwest through Luzerne County until it reaches the north side of Knob Mountain, which it runs parallel to until it merges with Fishing Creek. Huntington Creek drains the eastern and northeastern parts of the Fishing Creek watershed. Four covered bridges cross Huntington Creek; these are the Twin Bridges–East Paden Covered Bridge No. 120, the Twin Bridges–West Paden Covered Bridge No. 121, the Josiah Hess Covered Bridge No. 122, and the Huntington Mills Bridge.