Pennington County Black Hills National Forest 2N-3E-35
July 20, 1939: "Castle Peak, manned intermittently when the fire hazard is great." "A phone line will be built to Castle peak. The only communication there is radio." (Rapid City Journal)
September 22, 1939: "The tower at Castle Peak near Mystic is nearly completed, Averill said. This is a secondary tower and will be manned only during periods when fire conditions are dangerous." (Rapid City Journal)
June 27, 1940: Castle peak, secondary or emergency lookout. "The secondary lookouts are used only in times of fire hazard, such as after severe electric storms or when the weather has been very hot and dry for a long time." (Rapid City Journal)
March 9, 1961: "Withdrawal from appropriation, except under mineral leasing laws, has been ordered on 550.69 acres scattered through the Black Hills National Forest. Most of the land is in tracts of 10 to 40 acres used for fire lookouts. Fire lookouts involved include Castle Peak." (Rapid City Journal)
Torn down, remains scattered over the sides of the summit.