United States two-dollar bills, often specially marked or stamped, have become a unique way for individuals to commemorate visits to sites managed by the National Park Service. These bills, once defaced with a stamp from a specific park, serve as a tangible reminder of the experience, blending a common form of currency with personal travel memories. For example, a traveler might stamp a $2 bill at Yellowstone National Park with an official park stamp, noting the date of their visit.
This practice provides several benefits. For travelers, it creates a relatively inexpensive and space-efficient souvenir. From a historical perspective, these defaced bills document travel patterns and park popularity over time, providing a snapshot of American tourism. The bills also indirectly support the National Park System by raising awareness of the parks themselves, encouraging further visits and potential philanthropic contributions.
