Parkographer

Parkographer とは？

Parkographer is a free tracker for the 63 U.S. National Parks that turns your visits into a game. Check off parks to earn ranks and unlock achievements. Sort the parks into your own S–F tier list, build a wishlist of the ones you're chasing, and add friends to compare maps and climb the leaderboard together. See which parks the community rates highest, and share a public profile that shows off your journey. You can even GPS-verify a visit. Free, works in any browser, iOS app coming.