The 568th Strategic Missile Squadron Operated three HGM-25A Titan I ICBM sites: (1 Apr 1961 – 25 Mar 1965) 
568-A, 8 miles N of Schrag, Washington            47°11′16″N 118°49′22″W
568-B, 4 miles SSW of Warden, Washington          46°55′00″N 119°03′17″W
568-C, 6 miles SE of Frenchman Hills, Washington  46°54′26″N 119°45′19″W
The Titan I ICBM program at Larson was initiated in 1959 when the  Walla Walla District of the Army Corps of Engineers set up an area office in October.
The contractor broke ground on 1 December 1959 and the sites were turned over to SAC in early April 1961.
In May 1964 Secretary of Defense Robert McNamara directed that the phase-out of the Atlas and Titan I missiles be accelerated, and in January 1965 the missiles of the 568th were taken off operational alert.
The squadron was inactivated 2 months later.

Today, site "A" appears to be largely intact, the owner has the facility for sale.
 Photos of the interior show it to be in good condition.
Site "B" appears to be largely cleared, the silo launch doors of two pads appear to be open, and is also apparently also for sale.
Site "C" appears to be a scrap site, filled with clutter; its underground facilities apparently are flooded by groundwater.
The 568th Strategic Missile Squadron Operated three HGM-25A Titan I ICBM sites: (1 Apr 1961 – 25 Mar 1965) 
568-A, 8 miles N of Schrag, Washington            47°11′16″N 118°49′22″W
568-B, 4 miles SSW of Warden, Washington          46°55′00″N 119°03′17″W
568-C, 6 miles SE of Frenchman Hills, Washington  46°54′26″N 119°45′19″W
The Titan I ICBM program at Larson was initiated in 1959 when the  Walla Walla District of the Army Corps of Engineers set up an area office in October. The contractor broke ground on 1 December 1959 and the sites were turned over to SAC in early April 1961. In May 1964 Secretary of Defense Robert McNamara directed that the phase-out of the Atlas and Titan I missiles be accelerated, and in January 1965 the missiles of the 568th were taken off operational alert. The squadron was inactivated 2 months later.
Today, site "A" appears to be largely intact, the owner has the facility for sale.  Photos of the interior show it to be in good condition. Site "B" appears to be largely cleared, the silo launch doors of two pads appear to be open, and is also apparently also for sale. Site "C" appears to be a scrap site, filled with clutter; its underground facilities apparently are flooded by groundwater.
Larson Air Force Base