Mount Tammany Cliffs - Knowlton Township, NJ
Area: 54,204 Acres
Habitat: Cliff and talus slope with areas of scrub-shrub and forest
Site Description: The sheer cliffs, talus (rock debris at the base of a cliff) slopes and rocky outcrops of Mount Tammany overlook the Delaware Water Gap at 1527 feet above sea level. Habitats include deciduous and mixed forest, scrub-shrub and rare cliff and talus slope communities. Mount Tammany lies at the southernmost end of the Kittatinny Mountains in Warren County. The site is contained within Worthington State Forest and the Delaware Water Gap National Recreation Area. Mount Tammany is also part of the Delaware Valley Water Gap Macrosite IBA and is a Natural Heritage Priority Site, designated by the NJ Department of Environmental Protection as one of the state’s most significant natural areas. The mountain is named after the Lenni Lenape chief Tamanend.
Birds: Every spring and fall, over 15,000 raptors migrate through the Delaware Water Gap and Appalachian Mountains. Birds of prey utilize the thermals that rise along the ridges to migrate. Wintering Bald Eagles also use the updrafts along the cliffs for lift. Mount Tammany provides rare natural cliff habitat for breeding state-endangered Peregrine Falcons. Though the pair has been nesting unsuccessfully on the Pennsylvania side, the birds are frequently seen on the cliffs of Mount Tammany and may choose to nest there in the future. The rocky cliffs are also utilized by breeding Common Ravens.
Best Months and Seasons for Viewing
Spring and Fall