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Mt. Tammany Trail

Mt. Tammany Trail at Delaware Water Gap National Recreation Area near Hardwick Township, New Jersey is a difficult 2.5-mile out-and-back hike that features stunning views of Mt. Minsi and the Delaware River.

Trails
This hike follows one named trail: Mt. Tammany Trail (white blazes with red dots).

Hike Description
This hike begins at the main trailhead for the Mt. Tammany Trail, located at the Appalachian Trail trailhead parking lot for the Dunfield Creek section. The trailhead is located near the entrance to the parking lot, on the east side of the road. The trail heads into the woods and makes a left-hand turn at the first staircase. The trail then follows an open forest along "flat" terrain for just a short while before the rocky mountainous terrain of the trail begins.

Rocky Terrain Begins - Mile 0.2
At mile 0.2, the trail turns into mostly a rock path, which lasts for a good portion of the hike. The trails surface will transition to and from a rock-filled surface to leaf-covered forest floor, but for the most part, plan on rocks most of the way.

Delaware River & Mt. Minsi Views - Mile 0.4 to 0.45
At mile 0.4, the trail will flatten out slightly as it opens up to cliff side views of Mt. Minsi across the way, the Delaware River below your feet, and Mt. Tammany's steep slopes and cliffs to your left-hand side. There are several spots to get views of the area -- some provide similar views, others block out Mt. Minsi almost entirely. Hikers can enjoy the views and take a short break here to relax a bit from the initial climb up Mt. Tammany's slopes.

Creek Crossing - Mile 0.6
Around mile 0.6 is a shallow creek crossing. If in need, this water can probably be filtered.

Rock Ledges / Hard-to-Follow Trail - Mile 0.7 to 0.8
At mile 0.7, the trail will reach a large rock outcropping on the mountain. Here, the path snakes its way up the rocks along a mostly-safe path. Due to the jagged rocks and small ledges here, it's best to watch your step and take this section slow -- especially if there's a traffic jam of other hikers. During colder months, the cracks, crevasses, and crags will also include slippery ice that builds up. During the middle of Winter months, you'll want to bring microspikes at the very least if not real crampons and an ice axe to stay safe.

Off-Trail View of Pennsylvania - Mile 0.9
Around mile 0.9, there's an off-trail rocky outcropping that provides views into Pennsylvania - as of December 2023. In the future this view might be filled-in by the trees in the area. After this off-trail view, the hike leads up the mountain once more which is your last real ascent while hiking the trail and it ends around mile 1.1.

Mt. Tammany Lookout - Mile 1.2 to 1.25
At mile 1.2, the trail will turn to head southward where it leads into a large open rock outcropping. This is the top of Mt. Tammany's exposed rock slide and cliff area. Here, hikers will get the best view along the trail with Mt. Minsi across the way and the Delaware River below your feet. Hikers can head down the bedrock to get a better view and to take in the sights from the top of Mt. Tammany. Mt. Minsi sits across the way with its stripped striations that line its mountainous slopes. For those who've already hiked Mt. Minsi, you'll notice the striations are very similar to Mt. Tammany's. Hikers should chill and enjoy the view for as long as they want before continuing onward. During my hike here, I had to leave ASAP so I hiked this out-and-back; however, most people are into the popular loop hike here which connects down to the Dunfield Creek section of the Appalachian Trail -- choose your own adventure.

Hiking Out - Mile 1.25 to 2.5
This track heads back to parking via and out-and-back hike (due to a lack of time); however, hikers should note that the hike down the mountain, while generally faster, is definitely harder. It was much easier to traverse up the bedrock and jagged rocks than it was to hike down. I brought 2 trekking poles for this hike -- unlike most other hikers -- and found that traversing the mountain, while difficult, was a lot easier with trekking poles than it would've been without them. Watch your step, find sure footing, and be extra careful around the rock ledge outcropping section of the trail.

Parking
Hikers will find two very large parking lots -- the main lot is at the parking coordinates provided. The other lot is located to the east of this one at 40.971713, -75.122579. For folks driving on I-80 westbound, you can easily hop on this trail as the exit goes almost directly to the parking lot. Both parking lots are large enough to fit a few dozen vehicles. During the Summer, these lots fill up quickly, but less so during cold months.

Pets
Dogs are allowed only if leashed and must be cleaned up after.

Popularity
This is one of the most-popular day hikes within Delaware Water Gap National Recreation Area, especially due to its easy access from I-80 and proximity to NYC. During warm months, expect to see the parking lots very full most times of the day. If you wish to hike this without many people, aim for very early morning or the late evening.

Warnings
Rocky terrain: This hike follows plenty of rocky sections where its easy to slip, roll or twist an ankle.

Rock ledges: Part of this hike follows rock ledges -- while they are not very tall, they can still be dangerous. Watch your step. During Winter months, it's smart to bring, at the very least, microspikes / ice spikes for the rocky terrain as a lot of water builds up into ice chunks.
Explore 19 trails near Hardwick Township, NJ

Know Before You Go

  • The Mt. Tammany Trail is a challenging 2.5-mile hike in Delaware Water Gap National Recreation Area with rocky terrain and steep ascents, requiring careful footing and potentially microspikes in winter.
  • The trail offers rewarding views of Mt. Minsi, the Delaware River, and surrounding landscapes, with the summit providing the best vantage point.
  • It is a very popular hike, especially during warmer months, so hikers should plan accordingly, considering early morning or late evening hikes to avoid crowds, and be prepared for difficult downhill sections.
Interactive topographic map for Mt. Tammany Trail located in Hardwick Township, NJ. Click the "View Map" button to load GPS coordinates and trail markers.
Get directions
Distance
2.5 mi
Difficulty
Hard
Type
Out-and-Back
Est. Time
1.3 hrs
Elev. Gain
1,226'
Rating
5.0
Added
December 15, 2023
Updated
December 19, 2023

Weather Forecast

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Total Change
1,139'
Ascent
1,226'
Descent
1,225'
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Features

Vista / Lookout Point
Dogs
Water Source

Points of interest

  1. Parking

    40.971714, -75.125627
  2. Main Trailhead

    40.971605, -75.125353
  3. Staircase left-hand turn for Mt. Tammany Trail

    40.971731, -75.124864
    Staircase left-hand turn for Mt. Tammany Trail
  4. Trail heads up (left) around this rocky oucropping, beyond the large tree

    40.974072, -75.122636
    Trail heads up (left) around this rocky oucropping, beyond the large tree

Safety information

For your own safety: plan ahead, let someone know where you'll be, and hike at your own risk.

Hazards

Poison Ivy or Poison Oak
Rockfalls, Ledges, or Scrambles

Markers

Blaze Color

White

Blaze Dot Color

Red

Availability

All seasons

Surface type

Dirt

Trip Reports (Reviews)

Rated 5.0 out of 5 based on 2 ratings.

Ready to help fellow hikers? Add a trip report to share your experience and provide valuable insights for other hikers!

3.6 miles / 5.8 km
August 26, 2025
Having hiked Mt. Minsi the day before this hike, we were excited to climb this side of the DWG & see the views of Mt. Minsi. We chose to add on 2 other trails, The Blue BlazeTrail and Appalachian Trail so that we could also check out the Dunnfield Creek Waterfalls on our descent. This addition turned the hike from an "Out and Back" hike into a "Loop" hike. We knew that this was a very popular hiking destination so we decided to hit the trail early. We thought starting early would give us more "room" on the trail, so imagine our surprise to find the parking lot almost full at 8:00am on a Thursday! We started up the trail at the wooden steps to began our ascent up the rocky trail. As expected, we had plenty of company on the trail. At the first lookout we had no less than 15 other hikers enjoying the views of the Delaware Water Gap below. After a short break to enjoy the views & snap some pictures, we continued on and up until we were at the summit. The views from the summit are spectacular and we enjoyed stopping here for pictures and a snack. The descent is steady, steep in sections and very rocky. We met several hikers heading up to the summit as we descended and several had the same question as we passed...." How much further to the top"? I think we chose the correct direction to do this loop. We made steady progress down to the Dunnfield Waterfalls and realized that this was a fairly easy section to hike and no doubt a contributing factor to the full parking lot. Lots of folks don't necessarily hike to the summit, but they do take a nice walk in the woods to the falls. The water was low at the falls, but still flowing. The trail from the falls back to the parking area is wide, mostly gravely and fairly flat, which was a welcome break after the almost constant rocky conditions of our ascent and descent of Mt.Tammany. I would highly recommend doing the hike as a loop and going in the direction we hiked for the best views and easier ascent.
Hiking
7.5 miles / 12.1 km
February 03, 2024
Amazing DWG views (glad I went super early morning in Winter to avoid crowds). Climb up wasn’t too bad, but totally worth it (3 main overlook sections w/ 2 having rock scramble out/down to edge for best views). Blue dot down rocky, then glad I did the green Dunnfield Creek trail upstream with beautiful cascades! Able to loop by crossing creek, up red-blaze Holly Spring trail which then leads to AT.
Hiking

Explore other routes for this Trail guide, added by the MyHikes' community via Trip Reports (Reviews). To add your own hike as a Community Route for this Trail guide, leave a Trip Report and attached your GPX file!

Popular categories

Scenic mountain view representing vista trails
Vista trails
Scenic gorge of cascades representing waterfall trails
Waterfall hikes
Rugged mountain terrain representing summit trails
Summit trails
Scenic mountain view representing dog-friendly trails
Dog-friendly
Scenic campsite with a view representing camping trails
Camping trails
Appalachian Trail logo representing A.T. hikes
A.T. hikes

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