PS Knoll Lookout Complex, Apache–Sitgreaves National Forests

The PS Knoll Lookout Complex is a fire lookout tower and accompanying cabin located in the Apache-Sitgreaves National Forest. It was constructed in the mid-1930s. The nine-acre site consists of 3 contributing buildings and 1 contributing structure. The buildings are a house, storage shed, and outhouse; the structure is the lookout tower. The lookout sits at an elevation of 8,045 feet, and rises to a height of 45.9 feet. It was constructed by the Aermotor Windmill Company in 1933. ()