Geography Site: Lahars and Pyroclastic Flows
- Explains the causes and effects of pyroclasitic flows.
- http://www.geography-site.co.uk/pages/physical/earth/volcanoes/pyroclastic%20flows.html

Mount St. Helens: Mudflows and Lahar Images
- View pictures and descriptions of the landslides and their aftermath.
- http://vulcan.wr.usgs.gov/Volcanoes/MSH/Images/mudflow_images.html

When Rivers of Rock Flow
- Learn what a lahar is, where they occur, and the destruction they cause.
- http://earthobservatory.nasa.gov/Study/Lahars/

Landslides and Mudflows
- Fact sheet describes the warning signs, and advises what to do if you are in the path of one.
- http://www.fema.gov/hazard/landslide/

Fly-by Movies of Ancient Landslides
- Computer simulation and film footage shows landslides and mudflows that took place in California in 1996 and 1997.
- http://elnino.usgs.gov/landslides-sfbay/photos.html

Puget Sound Landslides
- A slideshow of photographs and explanations about the causes and effects of landslides in this part of US state of Washington.
- http://www.ecy.wa.gov/programs/sea/landslides/show/show.html

Landslides in the News
- The US Geological Survey presents a continually updated list of news stories about recent landsldes around the world.
- http://landslides.usgs.gov/recent/ls_news.php

Landslides in BC
- This illustrated and interactive site from Canada describes the different types and explains what causes them, where they occur, and how they can affect people.
- http://www.em.gov.bc.ca/Mining/Geolsurv/Surficial/landslid/