ENVS 125: Environmental Geology

Reference sources, technical reports and textbooks are good at explaining geologic phenomena in a visual way. 

Citation:

Highland, L.M. & Bobrowsky, P. (2008) The Landslide handbook—A guide to understanding landslides [PDF file]. Retrieved from https://pubs.usgs.gov/circ/1325/pdf/C1325_508.pdf. 

More sources for illustrations of geologic phenomena:

• U.S. National Park Service illustrations
• USGS Images -- limit to illustrations in the type filter; also search the USGS website using keywords--example illustration of subduction zone

Sties for images:

• NASA Visible Earth 
• USGS images  
• USGS Before and After Images 
• National Park Service Geologic Tour 
• British Geological Survey images

Sites with video of geologic processes:

• Landslides in the UK and Around the World from the British Geological Survey
• Visual Guides: Understanding the Earth 
• USGS all multimedia
• NOAA on YouTube 
• Search YouTube for videos, for example NASA about glaciers
• Knox Primo has records for videos in our streaming video collections, for example, this search lists some videos about geologic processes

For the United States, the  U.S. Geological Survey is the place to find all kinds of maps. USGS Maps.

Also try the USGS National Map Viewer.