4.9
(10)
85
riders
2
rides
Gravel biking around Trego-Rohrersville Station offers a diverse landscape characterized by historical waterways, rolling terrain, and scenic paths. The region features routes that often follow old canal towpaths and riverfronts, providing a mix of flat sections and gradual ascents. This area is known for its connection to historical sites and natural beauty, making it suitable for varied gravel biking experiences.
Last updated: April 26, 2026
5.0
(2)
50
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.7
(7)
10
riders
27.9km
02:21
100m
100m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(1)
2
riders
21.3km
01:35
150m
150m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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A paved elevated boardwalk stretches out along the water, giving you a fantastic view of the Potomac River. This spot can get pretty popular on summer weekends.
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The Antietam Aqueduct was built in 1834 to carry canal boats over Antietam Creek. It is over 140 feet long and is one of many such aqueducts along the C&O Canal.
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The Antietam Aqueduct, located at mile 69.4 of the C&O Canal Towpath, is a three-arch stone aqueduct that once carried the canal over Antietam Creek. Built in 1834, it is constructed from limestone quarried nearby and remains one of the best-preserved aqueducts along the canal. During the Civil War, it was near the site of Confederate troop movements before and after the Battle of Antietam in 1862. Though it suffered some damage over the years, it has been fully restored and now serves as a scenic and historic stop along the towpath, offering great river views and picnic spots.
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Dam No. 4 is located around mile 84 of the C&O Canal Towpath. Built in 1856, this dam was crucial for maintaining water levels for canal operations and remains an impressive structure along the river. The area around the dam is known for its scenic views and wildlife, making it a nice spot to pause before continuing on your ride.
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From this spot near McMahon’s Mill, you get great views of Big Slackwater. McMahon’s Mill used a steel wheel in the early 20th century to generate electricity. The mill closed in 1922 after a flood but was later restored by the National Park Service. Downstream from McMahon’s Mill, Big Slackwater marks where canal boats entered the Potomac River, avoiding the rocky cliffs by using pools behind Dam 4 and Dam 5. In 1996, flooding damaged the towpath, making this section impassable for over 15 years. Reconstruction began in 2010, and by 2012, the missing towpath section was restored, allowing visitors to travel the entire 184.5 miles of the C&O Canal once again.
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From here, you can look up at the West Portal of the Harpers Ferry Tunnel. The tunnel is part of the B & O Railroad Potomac River Crossing, which is on the National Register of Historic Places for its significance in commerce, engineering, industry, invention, and transportation.
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Yes, the region offers options for various skill levels. For an easier ride, consider the Sharpsburg loop from Antietam National Battlefield, which is 13.2 miles (21.3 km) long and takes about 2 hours to complete. This route provides a good introduction to gravel biking in the area.
Advanced routes in the Trego-Rohrersville Station area often feature longer distances, significant elevation changes, and varied surfaces, including historical canal towpaths and riverfront trails. For example, the Big Slackwater – Big Slackwater View loop from Sharpsburg is a challenging 71.6 miles (115.2 km) ride with over 1,670 feet (509 meters) of elevation gain, taking over 10 hours to complete.
The duration of gravel bike trails in this region varies significantly based on their length and difficulty. Shorter, easier routes like the Sharpsburg loop can be completed in about 2 hours, while more difficult and extensive loops, such as the Shepherdstown – Antietam Aqueduct loop from Dargan, can take over 6 hours for 50.1 miles (80.6 km) of riding.
While many routes are geared towards experienced riders, the region's historical canal towpaths often provide flatter, more accessible sections that can be suitable for families. Look for shorter, less challenging segments of these paths, which offer a gentler introduction to gravel biking without significant climbs.
Yes, many of the gravel bike trails in the Trego-Rohrersville Station area are designed as loops, allowing you to start and end at the same point. Examples include the Big Slackwater – Big Slackwater View loop from Sharpsburg and the Big Slackwater – Big Slackwater View loop from Dargan, which offer extensive circular routes through scenic landscapes.
Parking is generally available at various access points along the C&O Canal Towpath and near historical sites in the region. Specific parking areas can often be found near trailheads or popular starting points like Sharpsburg or Dargan, which serve as common access points for many of the area's gravel routes.
Spring and fall are generally the best seasons for gravel biking in the Trego-Rohrersville Station area. The weather is typically mild, and the natural scenery, especially along the Potomac River and canal paths, is at its most vibrant. Summer can be enjoyable but may involve higher temperatures and humidity, while winter can bring colder conditions and potential ice on trails.
The Trego-Rohrersville Station area is rich in history and natural beauty. Along the trails, you can encounter significant historical sites such as the Antietam National Battlefield and Gathland State Park. Many routes also follow the Potomac River, offering extensive views of the waterway and surrounding landscapes, particularly along the Big Slackwater sections.
The area is highly rated by the komoot community, with an average score of 5.0 stars. Reviewers often praise the unique combination of historical canal towpaths, scenic riverfronts, and rolling hills. The opportunity to explore significant historical sites while enjoying varied terrain is a frequently highlighted aspect.
Generally, there are no specific permits required for gravel biking on public trails like the C&O Canal Towpath in the Trego-Rohrersville area. However, it's always advisable to check local regulations or park websites for any specific rules or temporary closures before your ride, especially if you plan to access private lands or specific historical park areas.
While the immediate vicinity of some trailheads might be more rural, towns like Sharpsburg and Shepherdstown (a short distance from Dargan access points) offer cafes, restaurants, and convenience stores where you can refuel and rest. Planning your route to pass through or near these towns is recommended for refreshment stops.
The diverse natural environment along the Potomac River and its surrounding forests provides opportunities to spot various wildlife. Common sightings may include white-tailed deer, various bird species (including waterfowl near the river), and smaller mammals. Maintaining a respectful distance and observing quietly will enhance your chances of a wildlife encounter.


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