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Ledger, Montana: Perimeter Acquisition Radar Site

Giant concrete Cold War building on the northern plains -- built to withstand a nuclear blast -- was apparently left unfinished in the early 1970s.

Hauser Rd, Ledger, MT
I-15 exit 345. Drive east on Ledger Rd for 28 miles. Turn north onto Hauser Rd. Drive a half-mile. You'll see the concrete ruins on the left.
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Perimeter Acquisition Radar Site.

Perimeter Acquisition Radar Site

Visited the Perimeter Acquisition Radar site in July of 2021. It's easy to spot from the road and there's an active missile silo just across the street.

[KC Crowe, 02/12/2022]
Perimeter Acquisition Radar Site

The Anti Ballistic Missile Defense System, sometimes referred to as the Ballistic Missile Defense system, has gone through a number of variations throughout the years. Beginning in 1970 with the construction of the Stanley Mickelsen Safeguard Complex, and ending up as the current day Ground-based Midcourse Defense (GMD).

[Timothy Sutton, 04/20/2021]

This giant concrete Cold War building on the northern plains -- built to withstand a nuclear blast -- was left unfinished in the early 1970s. Although in the middle of nowhere, the roads leading to it are well paved, and graffiti embellishes most accessible walls.

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