62 and up: Get national park pass now fee increasing from $10 to $80 August 27
This is a lifetime pass.
About your Senior Pass
*$10 Lifetime pass
*Please note that the price of the lifetime Senior Pass will increase to $80 on August 28, 2017. Also, a new $20 annual Senior Pass will become available at the same time. Click HERE for more information regarding the changes in the Senior Pass Program.
*For U.S. citizens or permanent residents age 62 or over.
*May be obtained in person at a federal recreation site or through the mail using the application form.
*Provides entrance or access to pass owner and accompanying passengers in a single, private, non-commercial vehicle at Federal operated recreation sites across the country.
*Photo identification may be required to verify ownership.
*Passes are NON-REFUNDABLE, NON-TRANSFERABLE, and cannot be replaced if lost or stolen.
*The cost of obtaining a Senior Pass through the mail is twenty dollars ($20). Ten ($10) for the Senior Pass and ten ($10) for processing the application. Applicants must provide documentation of age and residency or citizenship. If you cannot order a Senior pass online, you can submit a Paper Application by mail to the USGS using the paper application and enclosing the same documents and $20 fee
*May provide a 50 percent discount on some amenity fees charged for facilities and services such as camping, swimming, boat launch, and specialized interpretive services
*Generally does NOT cover or reduce special recreation permit fees or fees charged by concessioners.
https://store.usgs.gov/senior-pass
= new reply since forum marked as read
I'm going to get one very soon. 
