What changed

October 26, 2026

• Correction: we had shown a park's own $70 annual pass as a possible option for groups from abroad, marked unconfirmed. Every park's fees page says these passes are sold to U.S. citizens and residents only, so the calculator now offers them only when a U.S. resident in the car can buy one.
• Checked fees by hand for 16 parks, including all 11 with the nonresident fee. Glacier has a lower winter rate (November 1 to April 30) that the NPS data feed leaves out; it's now included.
• The calculator now includes free passes (U.S. 4th graders, military, veterans and Gold Star families, permanent disability) and groups travelling in more than one vehicle.
• Every page now has a link to report a problem.

October 24, 2026

• First full check of all 63 park units against the NPS Data API.
• Chiricahua became the 64th national park on October 20, 2026. Its page is now listed.