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Warren County

Allamuchy Mountain State Park

The best running trails in Allamuchy Mountain State Park

By Fede from komoot

·

Updated June 1, 2026

If you've ever tried to plan jogging in Allamuchy Mountain State Park, you know how overwhelming the options can be. With so many trails, it's hard to tell which popular jogging trails are genuinely worth your time and which are just filler. That's where we come in. Our komoot community has mapped, run, and reviewed these routes, so we've done the legwork to bring you a curated shortlist of the best running routes, saving you the guesswork.

Jogging in Allamuchy Mountain State Park means immersing yourself in over 9,000 acres of diverse terrain, from mixed oak and hardwood forests to marshlands and rolling hills. You'll find everything from relatively flat, unpaved paths perfect for a steady pace to more challenging sections with significant elevation changes and technical features like rocks and roots, especially as you climb towards Allamuchy Mountain. The park is crisscrossed by an extensive network of trails, often winding alongside the picturesque Musconetcong River or past serene lakes like Jefferson Lake, offering a constantly changing backdrop for your run.

If you only do one route, we'd start with the Jefferson Lake – Sussex Branch Trail loop from Mount Olive. At 4.8 miles (7.8 km), it's a local favorite that combines the relatively flat Sussex Branch Trail with scenic views of Jefferson Lake, offering a great taste of the park's character. For something a bit more challenging with varied forest and natural areas, the Running loop from Allamuchy Mountain State Park is a solid choice at 7.5 miles (12.1 km). With more than 60 runners already exploring Allamuchy Mountain State Park with komoot, you're in good company. Dive in and discover your next favorite route!

If you only do 3 of these routes

  1. 1

    Sussex Branch Trail loop from Mount Olive
  2. 2

    Jefferson Lake – Sussex Branch Trail loop from Mount Olive
  3. 3

    Sussex Branch Trail – Jefferson Lake loop from Mount Olive

Compare these routes at a glance

Trail

Distance

Elevation

Difficulty

Sussex Branch Trail loop from Mount Olive

6.25 km

30 m

Moderate

Jefferson Lake – Sussex Branch Trail loop from Mount Olive

7.78 km

90 m

Moderate

Sussex Branch Trail – Jefferson Lake loop from Mount Olive

20.3 km

350 m

Hard

Jefferson Lake loop from Byram Center

6.22 km

110 m

Moderate

Running loop from Allamuchy Mountain State Park

12.1 km

90 m

Moderate

Running loop from Byram Township

10.8 km

180 m

Moderate

Running loop from Panther Valley

8.17 km

170 m

Moderate

Whites Pond – Kittatinny Valley Park loop from Andover

12.7 km

180 m

Moderate

Lake Aeroflex loop from Andover Township

5.54 km

60 m

Moderate

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1.

Sussex Branch Trail loop from Mount Olive

6.25km

00:46

30m

30m

The Sussex Branch Trail loop from Mount Olive offers a delightful escape into nature, perfect for a refreshing jog. This route winds through serene woodlands and past picturesque lakes like Jefferson Lake, providing a tranquil setting for your run. You'll find the terrain generally forgiving, with some sources suggesting mostly paved surfaces for this specific loop, making it a smooth experience for all skill levels.

This moderate 3.9-mile (6.3 km) jogging loop, with a gentle 105 feet (32 metres) of elevation gain, can be completed in approximately 45 minutes. Parking is conveniently located at the Waterloo Road trailhead, offering easy access to the start of your journey. It's an ideal choice for a quick workout or a peaceful outing, especially beautiful during the fall when the surrounding forests burst with color.

Following the path of a former railway line, the Sussex Branch Trail boasts a historically flat grade, making it an accessible route for many. Situated within or adjacent to Allamuchy Mountain State Park, the trail provides opportunities to spot local wildlife such as deer and various birds. It's a great way to experience the natural beauty of the region without a demanding climb, offering a pleasant blend of exercise and scenery.

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2.

Jefferson Lake – Sussex Branch Trail loop from Mount Olive

7.78km

00:58

90m

90m

The Jefferson Lake – Sussex Branch Trail loop from Mount Olive offers a delightful and varied jogging experience, taking you through peaceful forests, open fields, and along the scenic shores of Jefferson Lake. Much of the route follows a former railroad corridor, providing a mostly flat and wide path, though you'll encounter diverse unpaved surfaces ranging from dirt to cinder, with some sections potentially rockier or damp. Keep an eye out for local wildlife like deer and groundhogs as you enjoy the tranquil surroundings.

This moderate 4.8-mile (7.8 km) loop, with its gentle 292 feet (89 metres) of elevation gain, is typically completed in about 58 minutes, making it a great option for a quick yet rewarding run. While the main trail is generally easy and accessible, more adventurous joggers can explore numerous blazed and unblazed side trails that branch off, offering varied terrain and increased difficulty. Parking is typically available at various access points along the Sussex Branch Trail.

Historically, the Sussex Branch Trail was a vital railroad line, transporting iron ore and later passengers, and remnants of its past can still be seen today. It's also part of the larger Liberty Water Gap Trail, connecting various towns and natural areas. The trail's blend of natural beauty and historical significance makes it a unique and popular choice among the best running routes near Mount Olive.

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6.

Running loop from Byram Township

10.8km

01:22

180m

180m

The Running loop from Byram Township offers a diverse and engaging experience for joggers, taking you through a mix of open woods, wetlands, and past scenic features like rock outcrops and potentially sections of the Sussex Branch Trail near Cranberry Lake. You'll find varied terrain underfoot, from smoother paths to more rugged sections with rocks and roots, providing a dynamic journey through the natural beauty of Sussex County.

This moderate 6.7-mile (10.8 km) route involves about 585 feet (178 metres) of elevation gain and typically takes around 1 hour and 22 minutes to complete. While specific parking depends on your chosen starting point within Byram Township's extensive trail network, be aware that many trails are multi-use. If you're planning your run between September and January, remember to wear orange due to hunting season.

Byram Township is known as the "Gateway to New Jersey Trails," offering a wide array of jogging routes. This loop provides a taste of the region's varied landscape, from the relatively flat rail trail sections to more technical climbs that might lead to scenic vistas over lakes like Mohawk or Cranberry. It's a great option for those seeking a mix of challenge and natural scenery among the running trails Byram Township has to offer.

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Tips from the Community

mtm05005
June 10, 2024, Sussex Branch Trail - Allamuchy State Park

The Sussex Branch Trail is a 21-mile-long trail that runs from Branchville to Byram. This section of the trail runs through Allamuchy State Park and is mostly flat. The trail passes through some beautiful woodlands and several lakes.

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As an older total noob, the iron mine section was far too challenging on the climb and definitely anything but easy on the descent. Maybe I should stick to gravel🤣🤣🤔

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A short uphill trail that connects Jefferson Lake with the White Trail.

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The Sussex Branch Trail is unpaved and traverses roughly 20 miles through farmland, forest and towns in Sussex County. The trail goes through many quiet areas and is pretty flat.

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This is a beautiful lake. It is a very pleasant spot for a hike.

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Frequently Asked Questions

What kind of terrain and difficulty can I expect on the running routes in Allamuchy Mountain State Park?

Allamuchy Mountain State Park offers a diverse range of running terrain. You'll find routes traversing mixed oak and hardwood forests, marshlands, and areas along the Musconetcong River. Trails vary from easy, relatively flat sections, such as parts of the Sussex Branch Trail, to more challenging paths with uneven ground, small hills, and even steep inclines, rocks, and roots on Allamuchy Mountain itself. The park has options suitable for all fitness levels, from beginners to experienced runners.

Are there family-friendly running trails in Allamuchy Mountain State Park?

Yes, the park features trails suitable for families. While specific 'family-friendly' designations aren't always explicit for running, routes with easier, flatter terrain like sections of the Jefferson Lake – Sussex Branch Trail loop from Mount Olive are generally good options. These paths often utilize old railroad beds, providing a smoother experience for all ages.

Can I bring my dog on the running trails in Allamuchy Mountain State Park?

Generally, dogs are welcome on trails in New Jersey State Parks, including Allamuchy Mountain State Park, as long as they are kept on a leash. It's always a good idea to check the specific park regulations before your visit to ensure there haven't been any recent changes or restrictions on certain trails.

What natural features or landmarks can I see while running in the park?

While running through Allamuchy Mountain State Park, you can enjoy diverse landscapes including mixed oak and hardwood forests, hemlock-spruce forests, and marshlands. The Highlands Trail and Sussex Branch Trail offer scenic stretches. You'll also encounter several beautiful bodies of water such as Cranberry Lake, Jefferson Lake, Allamuchy Pond, and the particularly scenic Deer Park Pond. The Musconetcong River also winds through the park, adding to its picturesque quality. For panoramic views, look for designated viewpoints along the trails.

Are there any running routes that offer good views or scenic overlooks?

Yes, the park offers several spots with scenic views. The mountainous terrain of Allamuchy Mountain itself provides opportunities for elevation and vistas. Keep an eye out for designated viewpoints and areas offering a view of Allamuchy Mountain State Park, which are often found along the more elevated sections of trails.

How many running routes are available in Allamuchy Mountain State Park?

Komoot features over 15 running routes within Allamuchy Mountain State Park. These routes vary in length and difficulty, providing a wide selection for runners of all experience levels.

Are there any loop trails for running in the park?

Yes, many of the running routes in Allamuchy Mountain State Park are designed as loops, allowing you to start and end at the same point. Examples include the Running loop from Allamuchy and the Running loop from Byram Township, which offer varied distances and experiences.

What is the best time of year to go running in Allamuchy Mountain State Park?

Allamuchy Mountain State Park is enjoyable for running throughout much of the year. Spring and fall offer pleasant temperatures and beautiful foliage. Summer can be warm and humid, so early morning or late afternoon runs are often preferred. Winter running is possible, but trail conditions can vary with snow and ice, so appropriate gear and caution are advised.

Are there any historical sites or attractions near the running trails?

Yes, the park is home to historical attractions such as Waterloo Village, a well-known site with historic buildings. While not directly on every running trail, its proximity means you can combine a run with a visit to this interesting historical area.

How long are the running trails in Allamuchy Mountain State Park?

The running trails in Allamuchy Mountain State Park vary significantly in length. You can find shorter loops under 3 miles, such as the Running loop from Newton which is about 3.4 miles (5.5 km). There are also longer routes exceeding 10 miles, like the Lake Aeroflex – Whites Pond loop from Newton at 7.3 miles (11.7 km), providing options for various training distances.

Is there public transportation access to Allamuchy Mountain State Park for runners?

While the park is extensive, direct public transportation to specific trailheads can be limited. It's advisable to check NJ Transit bus routes or the closest train stations to the park's general vicinity and plan for potential taxi or ride-share services for the final leg to your desired starting point. Most visitors typically access the park by car.

Where can I find parking for the running trails?

Allamuchy Mountain State Park has various access points and parking areas throughout its vast expanse. Specific trailheads often have dedicated parking lots. For example, routes like the Jefferson Lake – Sussex Branch Trail loop from Mount Olive typically have parking available near their starting points. It's recommended to check the specific route details on komoot for parking information related to your chosen trail.

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