NPS Passport Program


Basic CMYK

Silos & Smokestacks National Heritage Area has passport stamps available as part of the Passport to Your National Parks cancellation stamp program. Your passport can be stamped at any of 21 participating Partner Sites in the Heritage Area.


The Passport to Your National Parks program is a voluntary program that nearly all parks within the National Park Service (NPS) participate. Visitors can purchase their official NPS Passport and start recording their visits to NPS sites by stamping their passport with a rubber cancellation stamp. The cancellations, similar to those received in an international passport, record the name of the park and the date it was visited. There are currently over 500 sites with the NPS that participate in the passport program.

For more information about this passport program, visit

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