U.S. Geological Survey Data Series 429
The map documents and shapefiles used to create the trackline maps provided in this report can be found in the 90KI1_91KI2.zip file located in the ARC folder. This folder also contains a readme file that describes the GIS project in detail. Map documents were created with ESRI ArcGIS 9.2 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/).