Kiver, E.P. and Harris, D.V. 1999.  Geology of U.S. Parklands, 5th ed., John Wiley and Sons, Inc.: New York, p. 725-729.

Muehlberger, William R., Muehlberger, Sally J., and Price, L. Greer. 2005 High Plains of Northeastern New Mexico, A Guide to Geology and Culture. New Mexico Bureau of Geology and Mineral Resources: Soccoro, NM.

Sayre, W.O. and Ort, M.H. 1999.  A Geologic Study of Capulin Volcano National Monument and Surrounding Areas.  Final Report, Cooperative Agreement CA7029-2-0017.

Stroud, J.R. 1995.  The Volcanic History and Landscape Evolution of the Raton-Clayton Volcanic Field.  


Additional References for the RCVF and Northern NM Petrology: 
Muehlberger, R. 1956.  Petrology and Geochemistry of the Quaternary Volcanic Rocks of the Capulin Mountain Region, Union County, New Mexico United States of America.  Geology, v. 11-A, p. 219-238.

Phelps, D.W., Gust, D.A., and Wooden, J.L. 1983.  Petrogenesis of the Mafic Feldspathoidal Lavas of the Raton-Clayton Volcanic Field, New Mexico.  Contrib. Mineral Petrol, v. 84, p. 182-190.

Stobbe, H.R. 1949.  Petrology of Volcanic Rocks of Northeastern New Mexico.  Bull. Geol. Soc. America, v. 60, p. 1041-1093.

Stormer, J.C. 1972.  Mineralogy and Petrology of the Raton-Clayton Volcanic Field, Northeastern New Mexico.  Geol. Soc. Of America Bull, v. 83, p. 3299-3322.