How to visit USA National Parks for FREE + Annual Passes 101

How to visit USA National Parks for FREE + Annual Passes 101

"In every walk with nature one receives far more than he seeks."John Muir The National Park System manages over 85 million acres of land, which includes 62 national parks (as of January 2021)! In recent years they have added a few national parks, giving them the promotion from national monument to national park, such as [...]