Encyclopedia of Caves and Karst Science by 
Encyclopedia of Earth and Space Science by 
The Field Guide to Geology by 
Volcanoes of North America by 
The Citizens' Guide to Geologic Hazards
Global warming cycles : ice ages and glacial retreat by 
Understanding Groundwater by 
At Risk by 
Earthshaking Science - What We Know (And Don't Know) about Earthquakes by 
Encyclopedia of Earthquakes and Volcanoes by 
Fire & ice : the Cascade volcanoes by 
Fire Mountains of the West by 
Volcanoes in Human History by 
Worlds on Fire by 
Geology of the Pacific Northwest by 
In Search of Ancient Oregon by 
Northwest Exposures by 
Oregon Geology by 
The Oregon Water Handbook by 
The Restless Northwest by 
