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Gravel rides
United States
New Jersey

Mercer County

The best traffic-free bike rides in Mercer County

4.1

(25)

262

riders

8

rides

Gravel biking in Mercer County offers diverse landscapes, characterized by extensive parklands, river systems, and canal paths. The terrain primarily consists of flat sections and gentle rolling hills, with some areas featuring steeper inclines. The region includes a mix of woodlands, open fields, and preserved open spaces, providing varied natural settings for no traffic gravel bike trails.

Best no traffic gravel bike trails in Mercer County

  • The most popular no traffic gravel bike trail is Carnegie Lake Dam loop from…

Last updated: April 25, 2026

4.8

(4)

17

riders

#1.

Carnegie Lake Dam loop from Princeton

29.7km

01:31

40m

40m

Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

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Easy

4.8

(4)

17

riders

Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

Easy
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1.0

(1)

11

riders

Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

Easy

5.0

(6)

5

riders

Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

Easy

5.0

(5)

8

riders

Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Moderate
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Popular around Mercer County

Traffic-free bike rides in Charles H. Rogers Wildlife Refuge

East Coast Greenway — An unforgettable ride along the Atlantic Seaboard

On the trail of the Pilgrim Fathers – road trip along the Atlantic coast

Traffic-free bike rides in Mercer County

Traffic-free bike rides in Mercer County

Other adventures in Mercer County

East Coast Greenway — An unforgettable ride along the Atlantic Seaboard

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Tips from the Community

sma
July 9, 2025, Ducks on the Delaware and Raritan Canal

Canadian geese in the D & R Canal

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The D&R Canal Towpath totals 77 miles across three sections. Originally constructed for mules to pull barges along the canal, it is now a multi-use path connecting communities across three counties.

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Washington Road crosses over Stony Brook here, and it's a great place to stop and enjoy the view. The wide shoulder and sidewalk along the side of the bridge allow you to stop safely without worrying about oncoming traffic.

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Built in 1834, the Kingston Lock was initially constructed to enable safe and efficient freight transport between Philadelphia and New York. These days it is a historic landmark along the D&R Canal Towpath.

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Delaware Raritan Canal trail is in a great condition and a beauty all year around with several historic marks.

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This historic district has so many stories to tell, starting with the Lenni Lenape Indians that originally occupied this area. Many of their artifacts have been found in this area, along with signs of early European settlers and 18th-century agriculture.

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Built in 1907 at the meeting point of Stony Brook and Millstone River, the Lake Carnegie dam created the lake enjoyed by rowers and the community. After a century of upkeep, repairs were needed again in 2015. This is a great place to watch races.

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This is a great way along the canal and should used

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Frequently Asked Questions

How many no-traffic gravel bike trails are available in Mercer County?

Mercer County offers 8 dedicated no-traffic gravel bike trails, providing a variety of options for riders looking to explore the region's natural beauty away from roads.

What kind of terrain can I expect on Mercer County's no-traffic gravel bike trails?

You'll find a diverse range of terrain. Many trails, like those along the Delaware & Raritan Canal, are relatively flat, following old towpaths or rail lines with crushed stone surfaces. Other areas, such as Carnegie Lake Dam loop from Hamilton, might feature gentle rolling hills and a mix of surfaces. For those seeking more elevation, Baldpate Mountain offers trails with varying inclines, though specific no-traffic gravel routes there might be limited to certain sections.

Are there any family-friendly no-traffic gravel bike trails in Mercer County?

Yes, many of the no-traffic gravel trails in Mercer County are suitable for families. Routes along the Delaware & Raritan Canal State Park Trail and within Mercer Meadows are generally flat and wide, making them ideal for riders of all ages. The D&R Canal Towpath loop from Mercer County is a great example of an easy, family-friendly option.

Can I bring my dog on these gravel bike trails?

Many parks and trails in Mercer County are dog-friendly, but it's always best to check specific park regulations before you go. Generally, dogs are permitted on leash on most multi-use trails, including gravel paths. Areas like Mercer Meadows and sections of the Delaware & Raritan Canal State Park Trail are popular for dog walking and biking.

What natural features or landmarks might I see along the trails?

Mercer County's trails offer a wealth of natural beauty and historical landmarks. You can expect to see scenic waterways like the Delaware River and the historic Delaware & Raritan Canal. Highlights include the Washington Crossing Bridge, the Carnegie Lake Dam, and the tranquil Lake Carnegie. Many routes also pass through lush woodlands and open fields, offering opportunities for wildlife spotting.

Are there any circular gravel bike routes in Mercer County?

Yes, several popular no-traffic gravel routes in Mercer County are circular. The various Carnegie Lake Dam loops, starting from different points like Princeton or Griggstown, are excellent examples of circular routes that allow you to enjoy the scenery without retracing your steps.

Where can I find parking for these no-traffic gravel bike trails?

Parking is generally available at various access points for Mercer County's trail networks. For trails like the Delaware & Raritan Canal State Park Trail, you'll find parking lots in towns along the canal. Mercer County Park and Mercer Meadows also offer designated parking areas for trail users. It's advisable to check the specific starting point of your chosen route for the most convenient parking.

What is the best time of year to go gravel biking in Mercer County?

Spring and fall are generally considered the best times for gravel biking in Mercer County. The weather is mild, and the natural scenery is at its peak, with blooming flowers in spring and vibrant foliage in autumn. Summer can be enjoyable, but be prepared for warmer temperatures and potential humidity. Winter riding is possible, but trails may be icy or muddy, depending on conditions.

Are there options for beginners looking for easy no-traffic gravel bike trails?

Absolutely. Mercer County has several easy no-traffic gravel trails perfect for beginners. The flat, well-maintained paths of the Delaware & Raritan Canal State Park Trail and many sections within Mercer Meadows are ideal for those new to gravel biking. Routes like the Carnegie Lake Dam loop from Port Mercer offer a gentle introduction to the sport.

What do other komoot users say about gravel biking in Mercer County?

The komoot community highly rates gravel biking in Mercer County, with an average score of 4.1 stars. Reviewers often praise the peaceful, traffic-free nature of the trails, the beautiful waterside views, and the well-maintained surfaces that make for an enjoyable ride. Many appreciate the accessibility and variety of routes available.

What wildlife might I encounter while riding?

Mercer County's diverse ecosystems, including wetlands, forests, and river systems, support a variety of wildlife. Along trails near the Delaware & Raritan Canal or Lake Carnegie, you might spot various bird species, including waterfowl and raptors like eagles. Deer, foxes, and other small mammals are also common, particularly in wooded areas and nature preserves like the Charles H. Rogers Wildlife Refuge.

Are there any longer no-traffic gravel routes for more experienced riders?

For experienced riders looking for a longer challenge, the Carnegie Lake Dam loop from Hamilton offers a moderate 39.9 km (24.8 mi) ride with slightly more elevation gain compared to other loops. Combining sections of the Delaware & Raritan Canal State Park Trail can also create extended routes, allowing for longer distances on continuous gravel paths.

Most popular routes in Mercer County

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Check out more Gravel rides throughout Mercer County below and find the perfect route in your destination.

Charles H. Rogers Wildlife Refuge

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