Mark A. Uhrich

• Conversion of environmental data to a digital-spatial database, Puget Sound area, Washington
• Environmental setting of the Willamette basin, Oregon
• Monitoring instream turbidity to estimate continuous suspended-sediment loads and yields and clay-water volumes in the upper North Santiam River basin, Oregon, 1998-2000
• Precipitation data for the Mount St. Helens area, Washington, 1981-86