U.S. Geological Survey Data Series 291
The map documents and shapefiles used to create the trackline maps provided in this report can be found in the arc.zip file located in the ARC folder. This folder also contains a read-me file that describes the GIS project in detail. Map documents were created with ESRI ArcGIS 9.1 software. The shapefiles provided may also be viewed using other versions of ArcView, ArcGIS, or public domain software ArcExplorer (http://www.esri.com/software/arcexplorer/).
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U.S. Geological Survey
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