Passport to Your National Parks
Passport cancellation stamps are a fun and free way to remember all of your visits to national parks. Collect your stamps in a special book (sold at cooperating bookstores) or on park brochures, Junior Ranger books, or blank paper.
The George Washington Memorial Parkway is a passport stamp collector's treasure trove. All 32 parkway-related stamps are available at parkway headquarters on weekdays from 8 am to 4:15 pm. A selection of these stamps is also available at Arlington House, the Arlington National Cemetery Visitor Center, Clara Barton National Historic Site, Glen Echo Park, and Great Falls Park.
Did You Know?
The water in Dyke Marsh Wildlife Preserve goes up and down with the tides, but is not salty. More...