Mt. Tammany, Delaware Water Gap, NJ Posted on November 14, 2013 by Cello's Corner June 2013 4 miles… a steep hike where a section of the hike led us upward 1,250 feet in 1.5 miles to a beautiful view! Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Like this:Like Loading...