America's Volcanic Past - Idaho
http://vulcan.wr.usgs.gov/LivingWith/VolcanicPast/Places/volcanic_past_idaho.html

Cascade Volcano Observatory, USGS


This website features descriptions of volcanic features and events in Idaho's three geologic regions. Descriptions include integrated definitions and links to related topics. The site also incorporates links to the geologic time scale, Craters of the Moon Volcanic Field and more in-depth information about Idaho volcanoes

This resource is referenced here:
Subject: Geoscience:Geology:Structural Geology, Igneous and Metamorphic Petrology:Volcanology
Resource Type: Scientific Resources:Collection, Overview/Reference Work
Topics: Solid Earth:Petrology:Volcanology, Time/Earth History, Solid Earth:Structural Geology