README for U.S. Geological Survey Data Series 677
  (Database for Professional Paper 1762) Database for
  Volcanic Processes and Geology of Augustine Volcano,
  Alaska

  By Jacqueline McIntire, David W. Ramsey, Evan Thoms,
  Richard B. Waitt, and James E. Beget

  This database was created using ArcGIS 9.3.1 personal
  geodatabase format and consists of a feature dataset
  containing geologic map feature classes for the map of
  Augustine Volcano depicted on Plate 1 of U.S. Geological
  Survey Professional Paper 1762. ArcGIS-compatible GIS
  software is therefore required to use the files of this
  database. The geodatabase is stored in a single zipped
  folder (5.52 MB in size) in this release for ease of
  transfer. The scale of the source maps limits the spatial
  resolution (scale) of the database to 1:25,000 or less
  detailed.