Geologic hazard maps and site-specific studies may also be available for this county.

General Hazards

• Christenson, G.E., and Bishop, C.E., 1985, Preliminary geologic hazard and resource inventory for state lands in Washington County, Utah: Utah Geological and Mineral Survey Report of Investigation 199, 14 p.
• Christenson, G.E., and Deen, R.D., 1983, Engineering geology of the St. George area, Washington County, Utah: Utah Geological and Mineral Survey Special Study 58, 32 p., 2 plates, scales 1:31,250 and 1:60,000.
• Harty, K.M., editor, 1992, Engineering and environmental geology of southwestern Utah: Utah Geological Association Guidebook 21, 342 p.
  Purchase

Earthquakes and Surface Fault Rupture

• Christenson, G.E., editor, 1995, The September 2, 1992 ML 5.8 St. George earthquake, Washington County, Utah: Utah Geological Survey Circular 88, 41 p.
• Lund, W.R., Hozik, M.J., and Hatfield, S.C., 2007, Paleoseismic investigation and long-term slip history of the Hurricane fault in southwestern Utah – Paleoseismology of Utah, Volume 14: Utah Geological Survey Special Study 119, 81 p., compact disk.

Radon

• Solomon, B.J., 1995, Radon-hazard potential of the southern St. George basin, Washington County, and Ogden Valley, Weber County, Utah: Utah Geological Survey Special Study 87, 42 p., 27 figures, approximate scales 1:100,000 and 1:112,400.
• Solomon, B.J., 1996, Radon-hazard potential in the St. George area, Washington County, Utah: Utah Geological Survey Public Information Series 35, 2 p., 1 figure, approximate scale 1:72,000.

Rock Falls

• Case, W.F., 2000, Notable Utah rock falls in the 1990s and 1980s: Utah Geological Survey Open-File Report 373, 11 p.