He highlights his most recent work, sponsored by the National Geographic Society, in exploring and mapping the largest cave system in the middle-Americas. In this technical talk, Dr. Buchanan provides a summary of how hydrogeologists do field research as input to subsequent computer modeling. Pressing societal issues of groundwater quantity and protection of groundwater quality are also explored. A new winery opened every 18 days in 1999. Rails to Trails - the conversion of railroad lines to recreational trails.
All talks are slide-illustrated.
Dr. Hoffman is available Winter 2000. Lake Roosevelt Landslides - The geologic history of the area behind Grand Coulee Dam combined with the largest reservoir in the Pacific Northwest created an environment where mass movement activity dominates the landscape. The diversity of our parklands provides world-class examples of practically every process and feature known to geological scientists. From plate tectonics to volcanoes, dinosaurs, glaciers, and limestone caves, all of these and much more are part of the finest park system in the world.