The National Park Service (NPS) approved increases to park fees for entrance, campgrounds, and picnic areas in several national parks in the greater DC area. Fees will improve facilities, infrastructure and visitor experiences. All of these rate changes will become effective on January 1, 2017. https://www.nps.gov/rocr/learn/news/nps-approves-fee-increases-for-several-national-parks-for-2017.htm