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 https://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 agreements for each library can be found with the library content.
The font files in /fonts are from
Google Web Fonts,
licensed under the
SIL Open Font License.
The Source Sans Pro fonts are copyright 2010, 2012 Adobe Systems Incorporated, with Reserved Font Name 'Source'. All Rights Reserved. Source is a trademark of Adobe Systems Incorporated in the United States and/or other countries.
The Merriweather fonts are copyright © 2010-2013, Sorkin Type Co with Reserved Font Name 'Merriweather'.