Unless otherwise noted, This software is in the public domain because it contains materials that originally came from the United States Geological Survey, an agency of the United States Department of Interior. For more information, see the official USGS copyright policy at http://www.usgs.gov/visual-id/credit_usgs.html#copyright
Dependent libraries found are distributed under the open source (or open source-like) licenses/agreements. Appropriate license aggrements for each library can be found with the library content.