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Chesapeake & Ohio Canal Trail (South)

Capital Region, MD

Historic/Family/Urban Legend
Trail Description

Location: Washington, D.C. (Georgetown) to Sharpsburg, MD.

Directions: Sections of the canal can be reached via Routes I-495, I-70 and I-68. There is a fee at the Great Falls area of the canal.

Trail Length: 184.5 miles

Trail Surface: Crushed Stone, gravel, dirt

Trail Difficulty: Easy

Multi-Use Trail: hiking, canoeing, kayaking and horseback riding

Caution: Bicycle riding is permited only on the towpath not on the park trails. Shared use so ride responsibly. Children under the age of 16 required to wear helmets. Towpath can be muddy after it rains.




Local Resources: Bike shops, bike clubs, adventure travel, bike tours, bike events, trail maps, bike safety, camping, historical places, where to stay and other related sources visit our Resource Hub.

Chesapeake Ohio RailTrail Map

Note: The free trail maps on this website have been simplified to provide an overview with approximate locations of trails and special features. Read Full Disclaimer.

C&O Canal Trail General Description:

The Chesapeake & Ohio Canal National Historical Park is a 184.5 mile continuous linear trail that travels along Maryland's Potomac River Valley from Georgetown, Washington D.C. to Cumberland, Maryland on the old C&O Canal towpath. Mountain biking the C&O Canal Trail Southern section as it climbs for 70 miles, from the Tidewater Lock (Lock 0) in Georgetown at the mouth of Rock Creek through the low, rolling hills of the Piedmont into the northern Blue Ridge at Harpers Ferry, West Virginia is a bike ride through American history and one of the best ways to discover the natural, cultural and recreational resources found all along the route.

The canal path is relatively flat and travels on a slight uphill grade towards Cumberland, MD. Although the surface of the towpath is mostly hard-packed dirt and gravel, the terrain varies from section to section. The bike path surface around popular, heavily visited attractions like Great Falls (mile 10 - 25 ) tend to be wider and smoother, while more remote stretches tend to be narrower and rougher - at some points nothing more than grassy doubletrack. After periods of heavy rain, expect very muddy trail conditions.

The C&O towpath trail is busiest between May and October and in the first 14 miles from Georgetown to Great Falls. Try riding the towpath at other times of the year or bike the upper reaches of the canal for a more relaxed, quieter cycling adventure.

Many towns along the route provide convenient services, bike rentals, refreshments and inns, making logistics for a weekend getaway or longer trip easy. 30 free hiker-biker campsites for one-night tent camping (first come-first serve basis), spaced at regular intervals, from Swain’s Lock (Mile 16.6) to Evitts Creek (Mile 180.1) offer alternative options for multi-day bike trips. The sites are primitive with port-a-potty, water pump, grill and picnic table (no showers). Five of these are drive-in (fee required). Several Hostels located along the route also offer inexpensive lodging options.

Trail Highlights:

Interesting geological features include the towering cliffs and interesting rock formations at Widewater where the canal widens and the spectacular Great Falls of the Potomac.

History afficianados will find the hundreds of original structures, including 21 locks, several lock houses and the canal's longest aqueduct along this stretch a fascinating reminder of the C&O Canal's role as a major transportation system during the Canal Era.

The C&O Canal Trail passes several National Historical sites including the Clara Barton National Historic Site, Harpers Ferry National Historical Park and the Antietam National Battlefield.


The Trail

Begin your ride at either the Georgetown or Great Falls Tavern Visitors Center (The Chesapeake and Ohio Canal National Historical Park Visitors Center).

Mile: 14: The Great Falls Tavern Visitor Center is on the Maryland side at around mile 14 along the C&O Canal Trail. Facilities include hiking trails, the Great Falls Overlook, information, picnic area, restrooms and snack bar. While there are nice views of the falls, there is no bridge on this side of the C&O Canal Trail to Great Falls National Park located on the Virginia side of the Potomac.

The Great Falls section of the C&O Canal Trail is a major recreation hub. Here, the Potomac River builds up speed and force as it cascades 76 feet in two-thirds of a mile over a series of steep, jagged rocks and rushes through narrow Mather Gorge. Besides cyclists travelling on the canal path, people come to hike on the challenging Billy Goat Trail, kayak or canoe in the whitewater below Great Falls, or rock climb in the Gorge.

Mile 16.6: Once you pass Great Falls, the crowds thin out. Swain's Lock is a very picturesque place to stop for a break. It used to be a popular refreshment stop and canoe and bike rental concession run by the Swain family. Swain family members helped to build the original canal and lived at the lovely white Lockhouse 21 since the early 1900's. The concession closed in 2005.

The park forms a corridor that is just as important for travelling wildlife as it is for hikers and bicyclists. It preserves a floodplain forest and wetlands habitat that supports a wide variety of flora and fauna. River otters, beavers, deer, red foxes, wild turkeys, great blue herons, songbirds and a variety of waterfowl are fairly common. You have a good chance of spotting some of them on your ride. Less common are the black bear, bobcat and bald eagle.

Mile 27.2: A good spot for wildlife and bird watching is the section of trail that passes through the McKee-Beshers Wildlife Management Area. You can also find Horsepen Branch, a lovely Hiker-Biker campsite located within easy access of the trail here.

Mile 42: You'll pass the 500 ft. Monocacy Aqueduct. It is the largest aqueduct on the Chesapeake and Ohio Canal. It used to carry the canal over the river. The bridge has no less than seven arches. It's a beauty.

Mile 58: the red brick Lockhouse 33 marks the junction of the Appalachian Trail (AT) with the towpath. The AT travels along the Potomac for a three mile stretch. At mile 61, the AT crosses over the river into West Virginia at Harpers Ferry. A footpath over the river on a railroad bridge provides easy access from the canal trail into Harpers Ferry at mile 60.2.

Mile 70: The Antietam Visitors Center and National Battlefield is the last stop on this southern stretch of the C&O Canal towpath. Driving, walking, and biking are just a few of the ways to experience this piece of history. An on-road bike route connects the Antietam National Battlefield Park to the C&O Canal towpath. Within the park, bicyclists are permitted on paved park tour roads and parking lots only.



C&O National Historic Park (South) Highlights:

Georgetown Visitors Center - 202-653-5190
Located at 1057 Thomas Jefferson Street, NW Washington, DC. Relive history with a canal barge ride along the Georgetown section of the C & O Canal, led by period-costumed guides from the National Park Service.

Great Falls Tavern Visitors Center - 301-767-3714
Located at 11710 MacArthur Blvd., Potomac, MD.
The Chesapeake and Ohio Canal National Historical Park Visitors Center was originally a lockhouse. You will find a working lock where living history interpreters bring the Canal Era to life, mule-drawn canal boat rides, and refreshments.

Great Falls National Park - 703-285-2965
Great Falls Park, on the Virginia side, has many opportunities to explore history and nature, all in a beautiful 800 acre park. There are five miles of multi-use trails within the park. The Ridge, Difficult Run, and Carriage Road trails are open to mountain biking, hiking and riding.

Biking to Great Falls Park is not recommended. Narrow two lane roads with no shoulders and sharp turns make it rather dicey. It's best to transport your bikes to the park by vehicle. Bike trails are easily accessible from the Visitor Center and the parking lots. Overlooks (accessible by hiking only) offer stunning views of the falls.

Tip: A bike rack is located behind the visitors center to lock your bikes. Trail maps are available in the Visitor Center and the entrance station.


Clara Barton National Historic Site
Early headquarters of the American Red Cross and home to its founder Clara Barton. The house is shown by guided tour only which are given every hour from 10:00 to 4:00 PM.

Monocacy Aqueduct
Completed in 1833. At 516 feet and with 7 arches, this is the longest of the eleven aqueducts erected along the C&O Canal. It is described by many historians as one of the finest canal features in the United States. The stone for the Monocacy Aqueduct was quarried from nearby Sugarloaf Mountain. The C&O Canal National Historical Park and its partners restored the aqueduct to its original state in 2004-2005.

Harpers Ferry
The historic town of John Brown's famous slave revolt, is a hop and a skip across the river on the West Virginia side of the canal.

Antietam National Battlefield
Take an interesting side trip around mile marker 76.6 to the site of the Civil War's bloodiest battle, where on September 17, 1862, more than 23,000 men died. Located bout 2.5 miles from the Towpath (Rt. 65, Sharpsburg, MD).


For more information on the National Parks:


Tip: Two hostels with dormitory accommodations and cooking facilities can be found at:

Washington International Youth Hostel at Mile 0 has 250 beds. (202) 737-2333
It is located near Washington DC's most famous attractions. Only 8 blocks from the White House and National Mall.

Harpers Ferry Youth Hostel at Mile 59 has 36 beds. (301) 834-7652
Just two miles from Harpers Ferry National Historic Park, there is a hostel lodge run by Hostelling International USA. It is situated high on a bluff, overlooking the confluence of the Potomac and Shenandoah Rivers. The hostel is a perfect overnight stop for bicyclists wanting to visit Harpers Ferry National Historic Park, where sights include St. Peter's Church, Virginius Island, the shops along High Street, and John Brown's Fort. Bunkbed accomodations and camping is available.



Historical Note:

The Canal operated from 1824-1924 as a tranportation route. It played an important role in western expansion, transportation, engineering, the Civil War, immigration, industry and commerce. For communities and businesses along its route, the Canal was a lifeline bringing coal, lumber, grain and other agricultural products to market It provided a link between the growing west and the east. Devastating floods and competition from the Baltimore & Ohio Railroad closed the canal trade by 1924. Some of the historic towns along the canal, with Visitor Centers, are Cumberland, Brunswick, Hancock, Williamsport, Great Falls Tavern and Georgetown.


For more information:

Trail Website: Chesapeake & Ohio Canal National Historic Park



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