Federal Golden Age Passport
This federally issued card entities U.S. senior citizens, age 62 and over, to entrance into any National Park. It also entitles holder to a 50% discount on any camping fees at federally administered areas.
Card may be obtained for $10 by applying in person, with proof of age, at:
Sagamore Hill National Historic Site
20 Sagamore Hill Road
Oyster Bay, N.Y. 11771