This is your direct link to all kinds of water resource information. Here you'll find information on Washington's rivers and streams. You'll also find information about groundwater, water quality, and many other topics. The USGS operates the most extensive satellite network of stream-gaging stations in the state, many of which form the backbone of flood-warning systems.
GeoGirls Dig Geology at Mount St. Helens Twenty middle school girls from Washington and Oregon are participating in "GeoGirls," an outdoor program jointly organized by the USGS and the Mount St. Helens Institute....(more)