USP Florence High is a high-security federal penitentiary for male inmates located in unincorporated Fremont County, Colorado, near the town of Florence and about 90 miles south of Denver. It opened in 1993 as part of a broader federal effort to expand high-security housing capacity, and its arrival was notable locally: the surrounding community, then struggling with high unemployment, backed the project overwhelmingly and even helped raise funds toward the land purchase, reflecting how significant the prison complex became to the local economy. The institution is one piece of the larger Federal Correctional Complex in Florence, which also includes the ADX supermax next door, a medium-security prison, and a minimum-security camp. Florence High is distinguished from its supermax neighbor by name and by function, and it includes a step-down unit used for inmates transitioning out of ADX's more restrictive conditions as they work toward lower-security placement. The compound spans a large footprint with a full perimeter fence and multiple guard towers, and currently houses roughly 900 to 1,000 inmates, offering standard high-security programming, medical care, education, and visitation facilities.