One Day Hike


Start: Saturday, April 27, 2013

C&O Canal National Historical Park, DC, MD, & WV <none>
Washington , DC 20037
Organizer's Website

About This Activity

The One Day Hike (ODH), organized by the Sierra Club Potomac Region Outings (SCPRO;, comprises two concurrent, non-competitive hikes of 100 km (62.1 mi) and 50 km (31.1 mi): The 100K starts at 3 AM from the Thompson Boat Center parking lot in Washington, DC; the 50K starts at 10 AM from Whites Ferry, MD. Both hikes proceed on the C&O Canal towpath along the Potomac River, ending in Harpers Ferry/Bolivar, WV, by midnight. The event has been held every year since 1974.

100K Start

The 100K starts at 3 AM from the Thompson Boat Center parking lot in Washington, DC.

50K Start

The 50K starts at 10 AM from the Whites Ferry parking lot in Montgomery County, MD.

Registration Opens

Friday, February 1, 2013; 4:00 PM ET

Registration Closes

Monday, April 15, 2013; 11:59 PM (midnight) ET, or after 350 registrations.

Cancellations & Refunds

Registrations are not transferable. To cancel a registration and obtain a refund (minus a $5 processing fee), a request must be sent to the ODH by April 10, 2013 (11:59 PM ET).

For More Information

Visit the ODH website ( for information about how to prepare for the hike, the training hike schedule, what to bring on hike day, and logistics. At the website you will also find results from previous years and pictures from the hike and the annual picnic.


The ODH is always looking for dedicated volunteers to help run the event. If you are too late to register and would like to volunteer, or you know someone who is interested in volunteering, click the "Contact" link above to request more information, or visit the ODH website ( First-time volunteers receive a free ODH T-shirt. Volunteering is the best way to support your fellow hikers.

On-Line Discussion Group

Official notices and updates are emailed to this on-line discussion group, which is also used by ODH hikers, volunteers, and others to discuss training, logistics, tips, and other topics related to ODH. Registrants are strongly recommended to join. Go to or send a blank email to Once you join, you can send emails to the entire group at

ODH T-shirts

ODH T-shirts are available by mail for $20. To order, visit the ODH website (


$50 to register for the 100K or the 50K

Additional Date Information
100K starts at 3 AM; 50K starts at 10 AM

Discuss This Activity