EXTECH III Yellowknife Greenstone Belt 2002 Project Update and GIS Database GSC Open File 4339 This CD complements GSC Open File D3962 and contains new data collected over the last year. New features include the Extech III 2002 field guide, 2001 year end reports, 3 dimensional mine models and additions to the GIS Database. The GIS database contains over 40 layers of geoscience data including bedrock geology, surficial geology, geochemistry, geophysics, mineral deposits, Landsat data, radar data and topographic data. Full documentation is located in \extech3\html. start with index.htm ArcView and ArcExplorer project files are located in \extech3 A free data viewer, ArcExplorer, is available in \software Adobe acrobat reader is available in \software