Geologic Maps
Nimz, K., Ramsey, D. W., Sherrod, D. R. & Smith, J. G. (2008). Database for the Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Data Series , 213
Sherrod, D. R., Taylor, E. M., Ferns, M. L., Scott, W. E., Conrey, R. M. & Smith, G. A. (2004). Geologic Map of the Bend 30- X 60-Minute Quadrangle, Central Oregon. U.S. Geological Survey Geologic Investigations Series, I-2683
Sherrod, D. R. & Smith, J. G. (2000). Geologic Map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon. U.S. Geological Survey Scientific Investigations Map , 2569, 17 p., 2 sheets.
USGS General Publication
Hildreth, W. (2007). Quaternary Magmatism in the Cascades - Geologic Perspectives. U.S. Geological Survey Professional Paper , 1744, 125 p.