If Only Lewis and Clark Had USGS Science - Although modern scientific tools, such as seismic monitoring devices, GPS, remotely sensing satellites and sophisticated streamflow measuring tools, used by the USGS today are far more sophisticated than those employed by Lewis and Clark in their first federally funded scientific expedition, the spirit of dedication and sense of discovery remain the same at the USGS today in carrying on the legacy of surveying the nation's natural heritage. During the 3-year bicentennial commemoration of Lewis and Clark's Corps of Discovery (1804-06) that starts this month (January 14, 2003 at Monticello in Charlottesville, VA), the USGS will bring the natural science of Lewis and Clark's time and the science of today to the public, including participation in the Federal Corps of Discovery II, a multi-agency traveling classroom that will retrace the route of the Lewis and Clark expedition. At many stops along the route, USGS scientists will talk about ongoing USGS investigations, explaining changes in river systems and pointing out advances in scientific instruments and understanding that have occurred during the last 200 years. An extensive website emphasizes USGS science (http://www.usgs.gov/features/lewisandclark.html). The USGS and 20 partner federal agencies have produced a special map, Discovering the Legacy of Lewis and Clark, that shows the coast-to-coast route of the Corps of Discovery. The map is available free of charge from many federal agencies and at Lewis and Clark commemoration sites across the nation. Jon Campbell (jcampbell@usgs.gov) 703-648-4460

Wrestling with a Great Green Giant - Hitching a ride on other plants shipped from nurseries or as an escapee from aquatic gardens, giant salvinia-an invasive, non-native weed-is threatening to choke off waterways in southeastern North Ca
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Contact: Heather Friesen
hfriesen@usgs.gov
703-648-4460
United States Geological Survey
13-Jan-2003