Carpenter, F. R., 1888, Notes on the geology of the Black Hills:
Preliminary report of the South Dakota School of Mines, Rapid
City, S. Dak.
Darton, N. H., 1909, Geology and water resources of the northern
portion of the Black Hills and adjoining regions in South
Dakota and Wyoming: U. S. Geol. Survey Prof. Paper 65.
Darton, N. H., and O’Harra, C. C., 1907, Description of the Devils
Tower quadrangle, Wyoming: U. S. Geol. Survey Geol. Atlas,
folio 150.
Dutton, C. E., and Schwartz, G. M., 1936, Notes on the Jointing of the
Devil’s Tower, Wyoming: Jour. Geology, v. 44, no. 6, p.
717-728.
Imlay, R. W., 1947, Marine Jurassic of the Black Hills area, South
Dakota and Wyoming: Am. Assoc. Petroleum Geologists Bull., v.
31, no. 2, p. 227-273.
Jaggar, T. A., Jr., 1901, Laccoliths of the Black Hills: U. S. Geol.
Survey 21st Ann. Report, pt. 3, p. 163-290.
Pirsson, L. V., 1894, On some phonolite rocks from the Black Hills:
Am. Jour. Sci., 3d ser., v. 47, p. 341-346.
Zuidema, H. P., 1948, The touring public discovers Mato Tipi (Devils
Tower, Wyo.): Earth Science Digest, v. 3, no. 1, p. 3-7.
Halverson, D. L., 1980, Geology and petrology of the Devils Tower,
Missouri Buttes and Barlow Canyon Area, Crook County Wyoming,
Dissertation.