Entrance fees are going up at some NPS parks.

As part of its ongoing efforts to address aging park infrastructure and improve the visitor experience, the National Park Service (NPS) announced in mid-April that it was making changes to the entrance fees charged at some national parks.

The changes, which come in response to public comments on a fee proposal released in October 2017, will increase entrance fees to raise additional revenue to address the $11.6 billion in deferred maintenance across the system of 417 parks, historic and cultural sites, and monuments, according to a press release.

Most seven-day vehicle passes to enter national parks will be increased by $5 and will be implemented in many parks beginning June 1. Yosemite National Park for example will increase the price of a seven-day vehicle pass to the park from $30 to $35, according to the release.

More than two-thirds of national parks will remain free to enter.

All of the revenue from the fee increases will remain in the NPS, with at least 80% of the money staying in the park where it is collected, according to the release. The funds will be used for projects and activities to improve the experience for visitors who continue to visit parks at unprecedented levels, the NPS said.

“An investment in our parks is an investment in America,” said U.S. Secretary of the Interior Ryan Zinke. “Every dollar spent to rebuild our parks will help bolster the gateway communities that rely on park visitation for economic vitality.

“The $11.6 billion maintenance backlog isn’t going to be solved overnight and will require a multi-tiered approach as we work to provide badly needed revenue to repair infrastructure,” he continued. “This is just one of the ways we are carrying out our commitment to ensure that national parks remain world class destinations that provide an excellent value for families from all income levels.”

The price of the annual America the Beautiful National Parks and Federal Recreational Lands Annual Pass and Lifetime Senior Pass will remain $80.

“Repairing infrastructure is also about access for all Americans,” Zinke said. “Not all visitors to our parks​ ​have the​ ​ability to hike with a 30-pound pack and camp in the wilderness miles away from utilities. ​​In order for families with young kids​, ​elderly grandparents​, or persons with disabilities​ to enjoy the parks, we need to rebuild basic infrastructure like roads, trails, lodges, restrooms and visitors centers.”

According to the release, fees to enter national parks predate the establishment of the NPS in 1916. For example, Mount Rainier National Park began charging an entrance fee in 1908, according to the release. Factoring in inflation, the $5 entrance fee the park charged in 1914 would be the equivalent of a $123 entrance fee today — more than four times the price of the new seven-day $30 vehicle pass, the release stated.

Entrance fees collected by the NPS totaled $199 million in Fiscal Year 2016. The NPS estimates that once fully implemented, the new fee structure will increase annual entrance fee revenue by about $60 million.