Actually, it isn't the home page, but two branches down.
Here is the 'home' page of the Cascades portion of the USGS site:
http://vulcan.wr.usgs.gov/Volcanoes/Cascades/
Also, Ghost, your advice regarding a month supply of provisions is a good idea. We always try to have a one year supply. Always better to have it and not need it, etc.