Constructed as part of the Grand Forks Air Force Base's 321st Missile Wing, Oscar-Zero and November 33 were completed in 1965, with Minuteman II missiles installed shortly after completion.
The sites were modified in the 1970s to accommodate Minuteman III missiles. For nearly 30 years these two missile facilities were on continuous alert.
The Strategic Arms Reduction Treaty in 1991 between the Soviet Union and the U.S. limited the number of strategic weapons on both sides, eventually resulting in the closing of the 321st Wing at Grand Forks and the removal of all missiles of the Grand Forks missile field.
Minuteman missile fields are still operating in North Dakota, based out of the Minot Air Force Base.
- More on Oscar-Zero at the State Historical Site.
- Pictures of the interior of Oscar-Zero.
- A picture of the missle launch console.
- What's down there?