Castle go. 2 mine. Aspen district, Colorado At head of Queen's gulch. R.M.News. Dec. 28, 1882 p.3 c.3 Rich ore, Queen's gulch. R.M.News. June 19,1882 p.4 c.4 Rich strike; character of ore. 1883 p.2 c.2 Development; ore shipments. R.M.News. Oct. 18,1883 p.3 c.3 0