Mount Hood is one of the major active volcanoes in the Cascade Range of the Pacific Northwest. Its most recent series of eruptions occurred about 1,500 years ago and in the 1790's, just before Lewis and Clark journeyed down the nearby Columbia River in 1805. When Mount Hood erupts again, how will communities that have since grown on the sides of the volcano and in river valleys leading from the volcano be affected? A new USGS report describes the kinds of hazardous geologic events that have happened at Mount Hood in the past and shows, in accompanying volcano-hazard-zone maps, which areas will be at risk when such events occur in the future. The report results from a nearly completed effort to map the geology of Mount Hood in an effort to unravel its eruptive history and anticipate its future potential activity. The report can be read online or, if you would like a copy, it can be ordered from the U.S. Geological Survey.

The report, published in 1997, is called "Volcano Hazards in the Mount Hood Region, Oregon"

URL of this page: http://volcanoes.usgs.gov/About/What/Highlights/MtHood/MtHood.html