The America the Beautiful Senior Pass (lifetime) is available to:
Cost: $80 (lifetime) or $20 (annual).
Benefits: Entry to 2,000+ federal recreation sites (NPS, BLM, USFS, USFWS, BOR, USACE). 50% discount on some amenity fees (camping, swimming, boat launch).
Purchase in person (with ID) at any participating federal site or online via USGS ($10 processing fee). No income test.