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Gravel rides
United States
Vermont

Grand Isle County

The best gravel rides in Grand Isle County

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Gravel biking in Grand Isle County offers routes across a unique island geography within Lake Champlain, characterized by low-lying terrain and extensive shoreline. The region features a mix of paved and unpaved roads, passing through wooded areas of hardwoods, hemlock, and white pine. Riders can experience views of both the Adirondack Mountains and Vermont's Green Mountains. This landscape provides suitable conditions for gravel cycling, with varied surfaces and minimal elevation changes.

Best gravel bike trails in Grand Isle County

  • The…

Last updated: July 6, 2026

7

riders

#1.

Porter Natural Area – Colchester Causeway loop from Colchester Bog Natural Area

34.7km

01:44

170m

170m

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

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Moderate

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

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

Easy

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

Moderate

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

Moderate

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Tips from the Community

dfrhodes1066
July 25, 2025, Colchester Causeway (Mainland to Ferry)

The Island Line Bike Ferry at Colchester Causeway www.localmotion.org/bike_ferry During Summer service, Bike Ferry Hours are 10am-5pm Mon-Fri & 10am-6pm Sat & Sun. The Bike Ferry runs continuously throughout the day. Reservations are not required, and the boat runs by passenger's donations (cash or Venmo). The 2025 Bike Ferry season begins Memorial Day weekend, Friday May 23 - Monday May 26. Spring service on Fridays, Saturdays, and Sundays through Sunday June 15th. Summer daily (7 days a week) service begins Monday June 16th and ends on Labor Day September 1st. Fall weekend service on Fridays, Saturdays, Sundays begins Sept 5th. Last day of 2025 service is Indigenous Peoples Day on Monday October 13th.

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The Porter Natural Area is a 56-acre nature preserve that is made up of wetlands and forests. The Colchester Causeway Trail passes through the preserve and brings you up close with the beautiful landscape.

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The Colchester Causeway has a 200-foot gap here to allow boats to pass through. In the summer, there is a short ferry that takes you to the other side to complete the trail.

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Also known as the Island Line Trail, the Colchester Causeway is a 13.4-mile gravel path that follows the old Island Line Railroad. It is popular with walkers, runners and cyclists.

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The Colchester Causeway is a popular, incredibly unique recreational trail located in Burlington, Vermont. It extends from the mainland to South Hero Island in Lake Champlain. The causeway is a narrow strip of land that was once used by the Rutland Railroad as a rail line connecting Burlington to the Champlain Islands. However, the rail line was abandoned in the 1960s, and the causeway was converted into a trail for pedestrians and cyclists. The causeway offers stunning views of Lake Champlain and the surrounding mountains. It's a popular spot for walking, jogging, biking, fishing, and birdwatching. The trail is relatively flat and easy to navigate, making it suitable for people of all ages and fitness levels. One of the highlights of the Colchester Causeway is the scenic bike ferry that operates during the warmer months (check the schedule here https://www.localmotion.org/bike_ferry). The ferry shuttles cyclists across a 200-foot gap in the causeway, allowing them to continue their journey uninterrupted. This unique feature adds to the charm of the trail and provides a memorable experience for visitors.

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Jamie S.
February 14, 2024, Delta Park

Delta Park is a pretty, unique park that is right on the water and accessible via the Island Line Trail (Burlington Bike Path), a popular multi-use trail. There are picnic tables where you can relax and explore the entire peninsula and delta.

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Matthew
November 16, 2023, Winooski River Bridge

This cool bridge on the Island Line Trail passes over the Winooski River and offers great views up and down the waterway. This is a pretty wide bridge and is pretty popular for picture taking.

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Frequently Asked Questions

What is the general terrain like for gravel biking in Grand Isle County?

Grand Isle County is primarily an archipelago with a distinctive, relatively flat landscape. You'll find a mix of paved and unpaved roads, extensive Lake Champlain shoreline, and wooded areas. The terrain is generally low-lying, making it highly suitable for cycling, with stunning vistas of both the Adirondack Mountains and Vermont's Green Mountains.

Are there any easy or beginner-friendly gravel bike trails in Grand Isle County?

Yes, Grand Isle County offers routes suitable for beginners. For example, the Colchester Causeway – Colchester/Burlington bridge loop from Grand Isle High Point is rated as easy, covering 34.1 km with moderate elevation gain. The region's generally flat terrain makes many of its quiet back roads accessible for those new to gravel biking.

What are some scenic highlights or landmarks I can expect to see along the gravel routes?

Many routes offer breathtaking views of Lake Champlain and the surrounding mountains. A significant highlight is the Colchester Causeway, which extends out onto Lake Champlain. You can also experience the unique Lake Champlain bike ferry crossing, connecting sections of the causeway. Other points of interest include Grand Isle State Park and the Gap in Colchester Causeway.

Are there any challenging gravel bike routes for experienced riders?

While the region is generally flat, some routes offer more distance and elevation gain for a moderate challenge. The Porter Natural Area – Colchester Causeway loop from Colchester Bog Natural Area is a moderate 34.7 km route with over 170 meters of elevation. Another moderate option is the Colchester/Burlington bridge – Colchester Causeway loop from Ethan Allen Park, which is 41.2 km long.

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

The spring, summer, and fall months are ideal for gravel biking in Grand Isle County. The region benefits from pleasant weather, making it perfect for enjoying the scenic routes and outdoor activities. Fall offers particularly stunning foliage views. Winter conditions can be challenging due to snow and ice, making many gravel paths less accessible.

Are there any circular gravel bike routes available?

Yes, many of the gravel biking experiences in Grand Isle County are designed as loops, allowing you to start and end at the same point. For instance, the Fox Hill loop from Lower Lamoille River Wildlife Management Area offers a 34.1 km circular route. The Lake Champlain Bikeways network also features five themed loops within the islands, ranging from 10 to 60 miles.

Can I find places to eat or stay near the gravel bike trails?

Grand Isle County offers various amenities for visitors. You'll find state parks like Grand Isle State Park and Knight Point State Park that provide camping facilities. The islands also have local cafes, pubs, and accommodation options, particularly in towns like South Hero and North Hero, which are often along or near popular cycling routes.

What other outdoor activities can I combine with gravel biking in Grand Isle County?

Beyond gravel biking, Grand Isle County is a hub for outdoor pursuits. You can enjoy water activities on Lake Champlain such as boating, fishing, swimming, and kayaking. The area is also nationally recognized for birdwatching, with locations like the Grand Isle Birding/Nature Trail. State parks like Alburgh Dunes State Park and North Hero State Park offer hiking and beach access.

Is public transport available to access the gravel bike trails in Grand Isle County?

While specific public transport options directly to trailheads might be limited, the Lake Champlain Ferries provide scenic crossings to Plattsburgh, New York, which can be a way to access the broader Lake Champlain Bikeways network. For local access, personal vehicles are generally recommended for reaching specific starting points and parking areas.

Are there any unique natural features to look out for while biking?

Absolutely. The region's unique island geography within Lake Champlain provides extensive shoreline views and diverse ecosystems. A notable natural landmark is the Chazy Fossil Reef on Isle La Motte, recognized as one of the oldest coral reefs globally. You'll also encounter wooded areas of hardwoods, hemlock, and white pine, contributing to the scenic beauty.

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