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NJ1K.org - A website dedicated to climbing New Jersey's thousand foot mountains

Mount Tammany

  • Elevation: 1549 feet
  • : 40.9723, -75.1057
  • County: Warren
  • Ownership: public
  • Owner: Delaware Water Gap National Recreation Area
  • Trail Map: NYNJTC South Kittatinny Trails #15
  • Topo Map: Acme Mapper
  • Nearest Higher Neighbor: Catfish Mountain, 8.68 miles.
Other Members Who Have Climbed Mount Tammany
Description: Mount Tammany is perhaps New Jersey's most iconic mountain. Mount Tammany makes up the North portion of the Delaware Water Gap, which serves as a gateway to and from New Jersey via Interstate 80.

Althought it is only New Jersey's fifth highest mountain, Mount Tammany requires the largest vertical gain of any mountain in our state. From the Dunnfield Creek trailhead to the Tammany summit is a 1200' climb.

There are many views of the Water Gap from the trails on Tammany. The photograph above was taken near the summit of Tammany, with a view of the Gap and Mount Minsi.

Summit Routes

Pictures Posted by Members
An Eastward view from Tammany. -by- Eric Koppel Looking into the gap. -by- Eric Koppel Victorious celebration at the summit! -by- Eric Koppel First light near summit of Mount Tammany. -by- SoloJoe
Waterfall along Blue Dot trail. -by- SoloJoe Classic shot of the Delaware Water Gap from near the summit of Mount Tammany. -by- SoloJoe -by- Areta, Alex, and Tim Masters -by- Areta, Alex, and Tim Masters
Ross on Tammany -by- Eric Hammons View from Mt. Tammany across the river to Mt Minsi -by- Scott Zabelski -by- Rui Rodrigues -by- Rui Rodrigues
-by- Rui Rodrigues -by- Rui Rodrigues -by- Doug Arbesfeld The Water Gap from Tammany -by- Canyon Coyote
Thomas at the summit area. -by- Thomas Bubniak Climbing up the Tammany Trail. -by- Thomas Bubniak -by- Jim F 1549ft at the top of the Offical Mt. Tamm. -by- Sam Zara - dodetrexer
Sherryl and I at the Top. Mt. Tamm. (Sherryl trying to be chipper" -by- Sam Zara - dodetrexer -by- Daniela Wagstaff Summit brush turned red for the Autumn -by- jon The view across to Mt. Minsi -by- jon
South down the delaware -by- jon Shot of Mt. Tammany on the way down the red dot. -by- jon Sunfish Pond -by- Brom Vermeulen -by- Jesse Stratowski
-by- Nicole Simoes Coming up to the top on the Blue trail. -by- Kait Stratowski Headed down on the Red. -by- Kait Stratowski Me and Molly. -by- Kait Stratowski
-by- Kait Stratowski -by- Mike Hot Dog Johnny's, Buttzville. Classic. -by- Mike The GSWW crew, May 2009 Hike. -by- Mike
-by- Joe Collins View of Mt. Minsi, PA -by- Al Pfingstl -by- Al Pfingstl Trail Upwards -by- Al Pfingstl
Panorama from near the top -by- John P View down the Delaware -by- John P View Northwest towards the Poconos -by- John P A peek southeast to New Jersey from near the actual summit -by- John P
Sunfish Pond -by- John P Dunnfield Falls -by- John P Dunnfield Creek -by- John P -by- George Grzyb