Hawk Mountain Council came into being in 1970, the result of the merger of the Daniel Boone Council (serving Berks County) and the Appalachian Trails Council (Serving Schuylkill and parts of Carbon County). The merger also encompassed two Order of the Arrow Lodges, Minsi Lodge 5 in Daniel Boone Council, and Memeu Lodge 125 in Appalachian Trails Council. When the two lodges merged in 1971, they kept the lower lodge number (as was customary then) and took on a new name, Kittatinny Lodge 5.
Previous to the merger, the Daniel Boone Council operated Camp Shikellamy on the south side of Blue Mountain and the Appalachian Trails Council operated Blue Mountain Camp on the north side. For two years after the merger, long-term camping was conducted at both locations. After that, to cut costs, all long-term camping was moved to Camp Shikellamy, but the council retained both properties. By 1977, Camp Shikellamy was closed and sold. All long-term camping moved back to Blue Mountain Camp, which was renamed and became the present day Hawk Mountain Scout Reservation.