This software is a product of the U.S. Geological Survey (USGS), an agency of the United States Department of Interior, which is part of the U.S. Government.
This software is freely distributed. There is no fee to download and (or) use this software.
Users do not need a license or permission from the USGS to use this software. Users can download and install as many copies of the software as they need. See Exceptions below.
As a work of the United States Government, this USGS product is in the public domain (http://www.usa.gov/publicdomain/label/1.0/) within the United States. You can copy, modify, distribute, and perform the work, even for commercial purposes, all without asking permission. Additionally, USGS waives copyright and related rights in the work worldwide through CC0 1.0 Universal Public Domain Dedication (https://creativecommons.org/publicdomain/zero/1.0/).
This project may have numerous dependencies from other open-source software projects. The re-use and distribution of those software packages may be subject to the licences of each of those dependencies.