Lockhouse 21: Register

NOTE: The Maryland State Highway Administration is performing urgent repairs to the Swains Lock Parking lot. The parking lot is closed until repairs have been completed, estimated around the end of November, 2026. The project is expected to generate sustained noise.

Due to the closure, some dates have been removed from the reservation calendar. Guests with affected reservations have been notified via email. This does not affect access via the towpath.

To register for your stay at this lockhouse, click on the first night you wish to stay, then click on the last night you wish to stay. Our minimum is one night, and maximum is three nights, per our agreement with the NPS.

IMPORTANT: Please do not click the "Back" button after you have clicked the "Submit" button. Clicking "Back" at any time will freeze your reservation in a pending state. Pending reservations clear in 30 minutes. Once you submit your payment information, please wait for "PAYMENT COMPLETE" screen to appear, or your reservation will not be added to our calendar, and the date may get double booked.

Calendar is loading...

- Available

- Booked

- Pending

IMPORTANT:

Please click the first night you wish to stay, then click on the last night you wish to stay. For Example, clicking "March 13th" Means you arrive on the 13th, and depart on the 14th. To stay one night, click the same date twice.

Arrive: ... after 3:00 PM
Depart: ... by 10:00 AM
Cost: $0.00

Within 30 minutes of successful registration, your confirmation email will arrive with your lockbox code, parking passes, and other pertinent information. If you do not recieve a confirmation email, check your spam folder, then email [email protected] For questions about registering, please contact the Trust by phone at 240-202-2625 Ext. 190, or by email: [email protected].

Have a Gift Certificate or Coupon Code? Enter it here:

First Name:

Last Name:

Email:

Phone:

Address:

City:

State:

Zip:

Number in party (required):

Number of times you've stayed here (required):

How did you hear about us? (required):

By placing your order to reserve this lockhouse, you are agreeing to our terms and conditions, and to the following cancellation and reschedule policies: Cancellations: • More than 30 days prior: Full refund less a $15 card processing fee. • Less than 30 days prior: No refund available. Reschedules: • More than 7 days prior: One-time reschedule. • Less than 7 days prior: No reschedule available.

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