YMCA Camp/ARMCO Park is a 75 acre park owned and operated by the Butler County Family YMCA. This beautiful community resource, which is open to the public, continues the family & community-oriented attitude that was a tradition of ARMCO, a steel mill that began operations in Butler in 1927. YMCA Camp/ARMCO Park offers a quaint, out door setting for your family reunion, picnic, birthday party, company picnic, graduation, wedding or other special occasion. The park features the new Play Mill Playground, picnic pavilions, new horseshoe pits, the historic Dance Hall, with the capacity of 300 and the only outdoor swimming pool in Northern Butler County.