Flat Brook

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The Flat Brook in Walpack approximately 400 yards north of its mouth

Flat Brook is an 11.6-mile-long (18.7 km)[1] tributary of the Delaware River in Sussex County, New Jersey in the United States.[2]

Upstream of the inflow of Little Flat Brook, the brook is known as Big Flat Brook.[2]

Historically, the watershed of the Flat Brook, and its two main tributaries, the 12.7 miles (20.4 km) Little Flat Brook and 16.5 miles (26.6 km) Big Flat Brook, has been known as the Wallpack Valley and is part of the historic Minisink region.

The Appalachian Trail passes through the watershed of the Flat Brook along Kittatinny Mountain.

The Flat Brook flows into the Delaware River near Walpack Bend in the Flatbrookville section of Walpack Township.


See also[edit]


  1. ^ U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map Archived 2012-03-29 at the Wayback Machine, accessed April 1, 2011
  2. ^ a b Gertler, Edward. Garden State Canoeing, Seneca Press, 2002. ISBN 0-9605908-8-9

External links[edit]

Coordinates: 41°11′19″N 74°50′49″W / 41.188731°N 74.847064°W / 41.188731; -74.847064