Jacks Valley (also written as Jack's Valley) is a 3,300-acre (13 km2) training complex on the grounds of the United States Air Force Academy in Colorado Springs, Colorado.
[1] Jacks Valley is used year-round by different military units and some civilian groups.
However, its primary use is during the second half of Basic Cadet Training (BCT) each summer.
While in Jacks Valley, they undergo one of the most physically demanding parts of their training at the Academy.
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