40°48′27″N 75°06′00″W / 40.8074°N 75.1°W / 40.8074; -75.1

Foul Rift is a Class II rapids in the Delaware River from mile 196.3 to 196.7, located about a mile south of Belvidere, New Jersey. The rapids are caused by a 22-foot descent in elevation of the limestone ledge riverbed for approximately 0.5 miles, and are considered to be the most dangerous on the Delaware River.^[1] At elevated water levels some of the narrower rapids can become extremely dangerous.

References

^ Letcher, Gary (September 1, 1997). Canoeing the Delaware River (Revised ed.). New Brunswick, N.J: Rutgers University Press. pp. 11, 120, 133. ISBN 0813524512.

Delaware River and Delaware Bay

Geography

Regions	Delaware Delaware Valley Delaware River Region Lenapehoking Minisink Skylands Region
Parks	Bombay Hook National Wildlife Refuge Cape Henlopen State Park Delaware and Lehigh National Heritage Corridor Delaware Canal State Park Delaware Water Gap National Recreation Area Fort Delaware State Park Fort Delaware Fort DuPont Fort Mott Fox Point State Park Glen Foerd Lower Delaware National Wild and Scenic River Neshaminy State Park Penn Treaty Park Pennsbury Manor Pennypack Park Prime Hook National Wildlife Refuge Spruce Street Harbor Park Upper Delaware Scenic and Recreational River Washington's Crossing Washington Crossing Historic Park Washington Crossing State Park Zane Grey Museum
Canals	Cape May Canal Chesapeake & Delaware Canal Delaware Canal Delaware and Hudson Canal Delaware and Raritan Canal Intracoastal Waterway Lehigh Canal Leiper Canal Lewes and Rehoboth Canal Morris Canal
Islands	Artificial Island Bull's Island Burlington Island Hendrick Island Little Tinicum Island Mud Island Shoal Petty Island Pea Patch Island Reedy Island Shawnee Island Treasure Island
Landmarks	Camden Waterfront Cape Henlopen Cape May Delaware Water Gap Finns Point Foul Rift Hawk's Nest Penn's Landing Port of Camden Port of Paulsboro Port of Philadelphia Port of Salem Port of Wilmington SS United States Tri-States Monument
Road and rail	Belvidere and Delaware River Railway Columbus Boulevard Delaware River Scenic Byway New York State Route 97 Old Mine Road Pennsylvania Route 32 River Line

History and culture

Organizations