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}} Minuteman Missile National Historic Site was established in 1999 to illustrate the history and significance of the Cold War, the arms race, and intercontinental ballistic missile (ICBM) development. This National Historic Site preserves the last remaining Minuteman II ICBM system in the United States.〔(【引用サイトリンク】title=Minuteman Missile National Historic Site )〕 (450 of the newer Minuteman III missiles are still on active duty, at Malmstrom AFB, MT, Minot AFB, ND and F. E. Warren AFB, WY.) ==Facilities== This National Historic Site consists of three facilities: a main office and two significant Cold War-era sites, a launch control center and a missile silo/launch facility, formerly operated by the 66th Strategic Missile Squadron of the 44th Strategic Missile Wing, headquartered at Ellsworth Air Force Base in Rapid City, South Dakota. The facilities represent the only remaining intact components of a nuclear missile field that once consisted of 150 Minuteman II missiles, 15 launch-control centers, and covered over of southwestern South Dakota.〔 The silo, known as launch facility Delta Nine (D-09) was constructed in 1963. It occupies 1.6 acres (6,000 m2) nearly one-half mile (800 m) southwest of Interstate 90 at Exit 116 and six miles (10 km) from the town of Wall, South Dakota, in eastern Pennington County. It consists of an underground launch tube ("missile silo") in diameter and deep, made of reinforced concrete with a steel-plate liner. An unarmed missile is on display inside. The launch tube's 90-ton cover has been rolled partly away and welded to the rails it rides on. The launch tube was then covered with a glass viewing enclosure. Not only does this permit visitors to see the missile, it means Russian satellites are able to verify that the site is not operational, and hence in compliance with the Strategic Arms Reduction Treaty. Because the only way to get to the underground part of the site is by a ladder long, tours are not conducted underground for safety reasons. Visitors can conduct self-guided tours of the site during the day by calling a number on their cell phones and walking around the site, listening to the description of various points over the phone. The launch control facility, known as Delta One (D-01), is about away, to the east-southeast in northwestern Jackson County. It occupies approximately six acres (24,000 m2) about 1.7 miles (2.7 km) north of I-90 at Exit 127. It consists of an above-ground building containing a kitchen, sleeping quarters, offices and life-support equipment. Below this building is the actual launch control center, buried deep, connected to the building by an elevator. Guided tours are conducted underground here, but are limited to six people at a time due to the very small underground launch control center ("capsule") and are a half-hour long. Self-guided tours are not possible here; the gate for the fence around D-01 is always locked, just like it was when it was an active launch control facility. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Minuteman Missile National Historic Site」の詳細全文を読む スポンサード リンク
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