Mount Tammany is the southernmost peak of the Kittatinny Mountains, in Knowlton Township, Warren County, New Jersey, United States.

It is 1,526 feet (465 m) tall, and forms the east side of the Delaware Water Gap.

The summit can be hiked by the Mount Tammany Trail ascending the western slopes.

Generally, this is considered a challenging trail with an average completion time of 2 hours 20 minutes.

This Warren County, New Jersey state location article is a stub.