I just purchased my lifetime senior citizen pass yesterday. Price was $10. Price will rise soon to $80. Just for your info.
Took about 3 full months to get it from the official USGS website.
Wow. I am feeling very fortunate. There is a National Historic Site, operated by the National Parks Service, where I live. I just drove down there and purchased mine; $10.Took about 3 full months to get it from the official USGS website.