Schlicker, H. G., R. J. Deacon, J. D. Beaulie, G. W. Olcott, and Oregon. District 1 Council of Governments. Environmental geology of the coastal region of Tillamook and Clatsop Counties In  Bulletin / State of Oregon, Department of Geology and Mineral Industries. Vol. no.74. Portland, Or.: Oregon Department of Geology and Mineral Industries, 1972.