{"version":"1.0","type":"card","id":"bf47083d-e9aa-4191-b354-c29b6d36abc6","url":"https://stacklist.com/card/bf47083d-e9aa-4191-b354-c29b6d36abc6","title":"Mammoth Cave, USA","source_url":"https://www.nps.gov/maca/index.htm","note":"The world's longest known cave system, offering a vast network of passages and diverse geological formations.\n\n","image":{"url":"https://ucarecdn.com/5d420743-999e-460e-a317-f619d9ec21e2/-/crop/720x720/0,0/-/preview/","alt":"Mammoth Cave, USA","width":1200,"height":630},"stack":{"id":"1286e022-057b-4e50-b525-6511a49fd9b0","title":"World's Underground Wonders: 7 Must-See Caves","url":"https://stacklist.com/c/travel/stack/1286e022-057b-4e50-b525-6511a49fd9b0"},"created_at":"2025-04-03T04:53:26.473Z","updated_at":null,"aco":{"summary":"Mammoth Cave National Park in Kentucky is a UNESCO World Heritage Site and International Biosphere Region. The website provides information about visiting the park, including cave tours, ranger-led programs, camping, lodging, accessible activities, hiking, canoeing, biking, stargazing, fishing, horseback riding, and more. It also includes basic information about the park, such as directions, hours, fees, reservations, and weather. \n","tags":[],"key_entities":[],"classification":null,"language":null,"confidence":null,"provenance":null,"token_counts":{"approximate":120},"content_hash":null,"acp_version":"0.2","body_available":false,"body_tokens":0,"visibility":"public","agent_accessible":true,"status":"final"},"_links":{"self":"/api/public/card/bf47083d-e9aa-4191-b354-c29b6d36abc6.json","html":"https://stacklist.com/card/bf47083d-e9aa-4191-b354-c29b6d36abc6","md":"/api/public/card/bf47083d-e9aa-4191-b354-c29b6d36abc6.md","stack_json":"/api/public/stack/1286e022-057b-4e50-b525-6511a49fd9b0.json"}}