Chaotic breccias in the Tucson Mountains, Trip IV, road log, in Heindl, L.A., ed., Southern Arizona Guidebook II, combined with the 2nd annual Arizona Geological Society Digest

Kinnison, J.E., and Courtright, J.H., 1959, Chaotic breccias in the Tucson Mountains, Trip IV, road log, in Heindl, L.A., ed., Southern Arizona Guidebook II, combined with the 2nd annual Arizona Geological Society Digest: Arizona Geological Society, p. 224-226.