Artillery Park (U.S. National Park Service)

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TIL that the US National Park Service and US Forest Service use artillery as a form of avalanche control : r/todayilearned

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Artillery Through the Ages: A Short Illustrated History of Cannon, Emphasizing Types Used in America (National Park Service Interpretive Series History) - Manucy, Albert: 9780898754469 - AbeBooks

On this day, the National Park Service was founded in 1916