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

General Hazards

• Hylland, M.D., and Mulvey, W.E., 2003, Geologic hazards of Moab-Spanish Valley, Grand County, Utah: Utah Geological Survey Special Study 107, 25 p., 4 plates, scale 1:24,000.
• Mulvey, W.E., 1992, Geologic hazards of Castle Valley, Grand County, Utah: Utah Geological Survey Open-File Report 238, 31 p., 4 plates, scale 1:24,000.

Rock Falls

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