{"id":"nps-mimi","slug":"minuteman-missile-national-historic-site","name":"Minuteman Missile National Historic Site","designation":"National Historic Site","category":"historic-site","categoryLabel":"Historic Site and Historical Park","agency":{"code":"NPS","name":"National Park Service","department":"U.S. Department of the Interior","url":"https://www.nps.gov"},"managedBy":[{"code":"NPS","name":"National Park Service","department":"U.S. Department of the Interior","url":"https://www.nps.gov","unitCode":"MIMI","designation":"National Historic Site","sourceId":"nps-mimi"}],"states":["SD"],"stateNames":["South Dakota"],"location":{"lat":43.89558013,"lon":-102.0272131},"bbox":[-102.1603,43.8428,-101.8952,43.9322],"acres":{"value":39,"kind":"gis-estimate","source":"Computed from the simplified boundary","note":"Approximate. The managing agency publishes official acreage."},"firstProtected":null,"established":null,"administrations":[],"designationHistory":[],"summary":"During the Cold War, a vast arsenal of nuclear missiles were placed in the Great Plains. Hidden in plain sight, for thirty years 1,000 missiles were kept on constant alert; hundreds remain today. The Minuteman Missile remains an iconic weapon in the American nuclear arsenal. It holds the power to destroy civilization, but is meant as a nuclear deterrent to maintain peace and prevent war.","summarySource":"National Park Service","guide":{},"trConnection":null,"trConnections":[],"trTypes":[],"links":{"official":"https://www.nps.gov/mimi/index.htm","social":{},"recreationGov":null,"alltrails":null,"alltrailsExplore":"https://www.alltrails.com/explore?b_tl_lat=43.9322&b_tl_lng=-102.1603&b_br_lat=43.8428&b_br_lng=-101.8952","recreationGovSearch":"https://www.recreation.gov/search?q=Minuteman%20Missile%20National%20Historic%20Site","directions":"http://www.nps.gov/mimi/planyourvisit/directions.htm"},"images":[{"url":"https://www.nps.gov/common/uploads/structured_data/3C7BEAAF-1DD8-B71B-0BBB2CECC1123926.jpg","title":"Delta-09 enclosure","alt":"Glass structure over the silo allows visitors to look down at the missile","caption":"The glass enclosure allows visitors to view a Minuteman II missile in the silo.","credit":"NPS Photo","source":"NPS"},{"url":"https://www.nps.gov/common/uploads/structured_data/3C7BEBF3-1DD8-B71B-0B5C85C543F76321.jpg","title":"Minuteman II Missile","alt":"A cylindrical missile inside an underground silo.","caption":"A Minuteman II nuclear missile remains on alert, representing the 1,000 missiles which kept a constant vigil during the Cold War.","credit":"NPS Photo","source":"NPS"},{"url":"https://www.nps.gov/common/uploads/structured_data/3C7BF0DC-1DD8-B71B-0B3812E6C9AC3B4E.jpg","title":"A winter visit to Delta-09","alt":"Two people are visible at the missile silo through a chain link fence","caption":"A visit to the Delta-09 missile silo allows the opportunity to consider the role of these missile in America's defense during the Cold War.","credit":"NPS Photo","source":"NPS"},{"url":"https://www.nps.gov/common/uploads/structured_data/3C7BED4C-1DD8-B71B-0B37F93539A2107E.jpg","title":"Delta-01","alt":"A brown building behind a tall fence with warning signs","caption":"For thirty years, US Air Force staff monitored a flight of ten nuclear missiles at the Delta-01 Launch Control Facility.","credit":"NPS Photo","source":"NPS"},{"url":"https://www.nps.gov/common/uploads/structured_data/3C7BF27F-1DD8-B71B-0B25D6E6F033E51E.jpg","title":"\"Thirty Minutes or Less\"","alt":"A large metal blast door with art of a Domino with a nuclear missile","caption":"Behind this blast door is the control center where two missileers kept a constant watch over ten nuclear missiles.","credit":"NPS Photo","source":"NPS"},{"url":"https://www.nps.gov/common/uploads/structured_data/3C7BF3EA-1DD8-B71B-0BF5FC14CA1D26B8.jpg","title":"Morale Art of the Cold War","alt":"A painting of a nuclear missile bursting through a Soviet Flag","caption":"Located next to the elevator, this painting served as a reminder to missileers who they were defending the United States against.","credit":"NPS Photo","source":"NPS"},{"url":"https://www.nps.gov/common/uploads/structured_data/3C7BF6F4-1DD8-B71B-0BF118191513DBAB.jpg","title":"Nose-to-Nose with Armegeddon","alt":"View down a silo at a nuclear missile","caption":"Visitors can peer through the glass at a Minuteman II missile in the silo at Delta-09.","credit":"NPS Photo","source":"NPS"},{"url":"https://www.nps.gov/common/uploads/structured_data/3C7BF8E6-1DD8-B71B-0B7D3BBA05E56FB9.jpg","title":"Night view of Delta-09","alt":"Night view of the Delta-09 site","caption":"Night view of the Delta-09 site","credit":"NPS Photo / Caroline Rohe","source":"NPS"},{"url":"https://www.nps.gov/common/uploads/structured_data/D4BF1CF6-1DD8-B71B-0B25279EBB07F48F.jpg","title":"Minuteman Missile Visitor Center","alt":"A modern building with a prominent glass clerestory dominates a prairie landscape at sunset","caption":"The visitor center at sunset.","credit":"HDR","source":"NPS"},{"url":"https://www.nps.gov/common/uploads/structured_data/D4D4B259-1DD8-B71B-0BCCC417E00707BA.jpg","title":"Cold War \"Blast Door\" art at Delta-01","alt":"A view of a concrete wall with a painting and a blastdoor with art","caption":"Morale art reminded missile officers who the enemy was during the Cold War","credit":"NPS/Minuteman Missile NHS","source":"NPS"},{"url":"https://www.nps.gov/common/uploads/structured_data/D4EC1734-1DD8-B71B-0B62ED8F48546BF3.jpg","title":"Park Ranger leads a tour in the underground control center","alt":"A ranger talks to visitors next to electronic cabinets.","caption":"A park ranger leads a tour in the underground control center","credit":"NPS/Rob Swanson","source":"NPS"}],"activities":["Guided Tours","Junior Ranger Program","Park Film","Museum Exhibits","Shopping","Bookstore and Park Store"],"topics":["Engineering","Military","US Air Force (Army Air Corps)","Science, Technology and Innovation","Social Movements","Tragic Events","Wars and Conflicts","Cold War"],"fees":[],"passes":[],"hours":[{"name":"Delta-09 Missile Silo","description":"Visitors are invited to go inside the fenced compound and look down into the silo at a Minuteman missile in its historic state, protected by a glass viewing enclosure. A narrated ranger guided tour of Delta-09 is available year-round using your cell phone. Inclement weather may close this site on occasion.","standardHours":{"wednesday":"9:00AM - 3:00PM","monday":"9:00AM - 3:00PM","thursday":"9:00AM - 3:00PM","sunday":"9:00AM - 3:00PM","tuesday":"9:00AM - 3:00PM","friday":"9:00AM - 3:00PM","saturday":"9:00AM - 3:00PM"},"exceptions":[{"name":"Thanksgiving Day","start":"2026-11-26","end":"2026-11-26","hours":{"thursday":"Closed"}},{"name":"Christmas Day","start":"2026-12-25","end":"2026-12-25","hours":{"wednesday":"Closed","monday":"Closed","thursday":"Closed","sunday":"Closed","tuesday":"Closed","friday":"Closed","saturday":"Closed"}},{"name":"New Year's Day","start":"2027-01-01","end":"2027-01-01","hours":{"wednesday":"Closed","monday":"Closed","thursday":"Closed","sunday":"Closed","tuesday":"Closed","friday":"Closed","saturday":"Closed"}},{"name":"Labor Day","start":"2027-09-06","end":"2027-09-06","hours":{"monday":"Closed"}},{"name":"Winter Hours","start":"2026-09-06","end":"2027-05-17","hours":{"wednesday":"9:00AM - 3:00PM","monday":"Closed","thursday":"9:00AM - 3:00PM","sunday":"Closed","tuesday":"9:00AM - 3:00PM","friday":"9:00AM - 3:00PM","saturday":"9:00AM - 3:00PM"}},{"name":"Columbus Day","start":"2027-10-11","end":"2027-10-11","hours":{"monday":"Closed"}}]},{"name":"Delta-01 Launch Control Facility","description":"A recorded audio tour at Delta-01 is available for all visitors that guides you to the front gate of Delta-01. \n\nTo enter the Delta-01 facility, visitors need to attend a ranger-guided tour. Due to the size of the elevator and the confined space underground, advance reservations are required and tours are limited to 6 visitors at a time. Inclement weather may close this site on occasion.","standardHours":{"wednesday":"9:00AM - 3:00PM","monday":"9:00AM - 3:00PM","thursday":"9:00AM - 3:00PM","sunday":"9:00AM - 3:00PM","tuesday":"9:00AM - 3:00PM","friday":"9:00AM - 3:00PM","saturday":"9:00AM - 3:00PM"},"exceptions":[{"name":"Thanksgiving Day","start":"2026-11-26","end":"2026-11-26","hours":{"thursday":"Closed"}},{"name":"Christmas Day","start":"2026-12-25","end":"2026-12-25","hours":{"wednesday":"Closed","monday":"Closed","thursday":"Closed","sunday":"Closed","tuesday":"Closed","friday":"Closed","saturday":"Closed"}},{"name":"New Year's Day","start":"2027-01-01","end":"2027-01-01","hours":{"wednesday":"Closed","monday":"Closed","thursday":"Closed","sunday":"Closed","tuesday":"Closed","friday":"Closed","saturday":"Closed"}},{"name":"Labor Day","start":"2027-09-06","end":"2027-09-06","hours":{"monday":"Closed"}},{"name":"Winter Hours","start":"2026-09-06","end":"2027-05-17","hours":{"wednesday":"9:00AM - 3:00PM","monday":"Closed","thursday":"9:00AM - 3:00PM","sunday":"Closed","tuesday":"9:00AM - 3:00PM","friday":"9:00AM - 3:00PM","saturday":"9:00AM - 3:00PM"}},{"name":"Columbus Day","start":"2027-10-11","end":"2027-10-11","hours":{"wednesday":"Closed","monday":"Closed","thursday":"Closed","sunday":"Closed","tuesday":"Closed","friday":"Closed","saturday":"Closed"}}]}],"directions":"Minuteman Missile National Historic Site is located at three sites along a fifteen mile stretch of Interstate 90 in western South Dakota. The Visitor Center is located immediately north of I-90, exit 131. The two historic sites which make up the park are four miles (Launch Control Facility Delta-01) and 15 miles (Launch Facility Delta-09) from the Visitor Center. No public transportation systems serve the park.","weatherInfo":"Rapid weather changes are common in the western South Dakota area where Minuteman Missile National Historic Site is located. Variations from season to season and from year to year are great. Characteristics of the climate are hot dry summers and bitterly cold winters. Wind is a constant on the Great Plains, winds in excess of 50 mph not uncommon. During the winter season, winds typically blow from the north-northwest and have been known to cause wind chills in excess of -40 degrees.","contacts":{"phone":"6054335552","email":"mimi_information@nps.gov"},"visitorCenters":[{"name":"Minuteman Missile NHS Visitor Center","description":"The visitor center is the best place to begin your visit to the park. Exhibits, films, and a bookstore allow visitors to explore the story of the Minuteman Intercontinental Ballistic Missile System and its role in the larger context of the Cold War.","url":"http://www.nps.gov/mimi/planyourvisit/visitorcenters.htm","lat":43.844506640113046,"lon":-101.90127362433805}],"campgrounds":[],"thingsToDo":[],"nearby":[{"slug":"buffalo-gap-national-grassland","km":10},{"slug":"badlands-national-park","km":43},{"slug":"lacreek-wetland-management-district","km":87},{"slug":"lacreek-national-wildlife-refuge","km":96},{"slug":"mount-rushmore-national-memorial","km":114},{"slug":"norbeck-wildlife-preserve-national-game-refuge","km":118}],"hasBoundary":true,"boundarySource":{"name":"NPS Land Resources Division","url":"https://irma.nps.gov/DataStore/Reference/Profile/2224545"},"sources":[{"name":"NPS Data API","url":"https://developer.nps.gov/api/v1/parks?parkCode=mimi"},{"name":"NPS Land Resources Division boundaries","url":"https://services1.arcgis.com/fBc8EJBxQRMcHlei/arcgis/rest/services/NPS_Land_Resources_Division_Boundary_and_Tract_Data_Service/FeatureServer/2"}],"editorialStatus":"draft","synced":"2026-11-09T02:12:45.618Z","alerts":[{"source":"NPS","kind":"Caution","title":"Warning about GPS Systems!","text":"Vehicle Navigation Systems and GPS units may provide inaccurate information—sending drivers the wrong way on one-way roads, leading them to dead ends in remote areas, or sending them on roads which are impassable. Use the Interstate exits for wayfinding.","url":"https://www.nps.gov/mimi/planyourvisit/directions.htm","updated":"2017-08-02 08:27:14.0","id":"nps-07FA0182-FE82-4689-9355-B863754A45A9"}],"url":"https://directory.labs.trlibrary.com/sites/minuteman-missile-national-historic-site/","boundaryUrl":"https://directory.labs.trlibrary.com/boundaries/minuteman-missile-national-historic-site.geojson"}