Trump's executive order also tackles maintenance and infrastructure needs across the National Park System and ends an Obama-era memorandum.

Big Bend, one of the largest national parks in the U.S., is now operating with just half the staff it needs. As part of a sweeping decline in staffing across the National Park Service (NPS), the park has lost key personnel this year, including its superintendent, who retired in May, and its chief of interpretation, whose position remains vacant.

The U.S. National Park System offers an unmatched array of hiking experiences that cater to seasoned backpackers and casual day hikers alike. Across 63 national parks are more than 18,000 miles of trails,