Mount Tammany
Trail · New Jersey
From the Dunnfield Creek lot in Worthington State Forest, a 3.5-mile loop climbs Mount Tammany for New Jersey's classic view of the Delaware River slicing through the Kittatinny Ridge, part of the roughly 70,000-acre Delaware Water Gap National Recreation Area established in 1965.
Don’t miss
Peak: October 17–October 21
Color builds from October 8 · mostly bare by November 10
Sampled at Mount Tammany’s own coordinates and elevation (120 m) rather than a regional average.
New Jersey is sampled at 4 weather points, then moved 5 days later so the model agrees with 1 published peak date from smokymountains.com. Against New Jersey's own climatology, the 2026 weather puts the peak 4 days earlier. How the forecast works
When to go to Mount Tammany
Good color holds through about October 28, giving you roughly 20 days from the first turn to past peak.
It is roughly 61 mi out of New York City. Philadelphia is about 70 mi out.
Mount Tammany on the map
Drag the date slider to see when color reaches this corner of New Jersey, or tap a pin for that stop’s own peak window.
More things to do in New Jersey
Leaves & views
Farms & harvest
Cider & donuts
Plan from a city
Frequently asked
- When does Mount Tammany peak in 2026?
- Peak color is predicted for October 17–October 21 (best estimate October 19). Color starts around October 8 and is mostly bare by November 10.
- How do I get to Mount Tammany?
- The closest city is New York City, about 61 mi away. It's part of New Jersey's fall lineup.
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