Submarine Testing

Submarine Testing is an Idaho historical marker in Kootenai County, dedicated 2025.

SH-54, milepost 14.76

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Landlocked Idaho has contributed significantly to American submarine technology. During World War II, the Farragut Naval Training Station prepared nearly 300,000 sailors for duty. Following the war, the Navy retained a 25-acre parcel of the former training center for its Acoustic Research Detachment (ARD). As the nation’s fifth-deepest lake, Pend Oreille proved an ideal submarine testing environment. With a fleet of reduced-scale submarines, ARD undertakes trials here at a fraction of the expense of ocean research, aiding the Navy’s development of efficient, quiet submarines. The ARD’s Bayview base has supported nearly every major post-World War II submarine design.

TodayHistorical map

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David Rumsey Map Collection, Stanford Libraries

Historical maps covering this location

1859 · Department of Oregon. Map of the state of Oregon and Washington Territory (David Rumsey Map Collection, Stanford Libraries)
1861 · Rocky Mountains to Puget Sound. (David Rumsey Map Collection, Stanford Libraries)
1870 · Ore., Wash., Idaho, Mont. (David Rumsey Map Collection, Stanford Libraries)
1872 · Bancroft's Map Of Oregon, Washington, Idaho, Montana And British Columbia. (David Rumsey Map Collection, Stanford Libraries)
1927 · Spokane, Seattle. (David Rumsey Map Collection, Stanford Libraries)

Spokane, Seattle, 1927, covering the location of Submarine Testing, with a pin at the marker's coordinates — Spokane, Seattle, 1927, covering this location. David Rumsey Map Collection, Stanford Libraries. The pin is ours, placed from the marker's coordinates.

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Submarine Testing

Historical maps covering this location

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