MODPATH version 7 is the fourth major release since its original publication. Previous versions were documented in USGS Open-File Reports 89-381 and 94-464 and in USGS Techniques and Methods 6-A41. The current release of MODPATH version 7 (7.2.001) works with MODFLOW-2005, MODFLOW-USG, and MODFLOW-6. Support for unstructured grids in MODFLOW-USG and MODFLOW-6 is limited to smoothed, rectangular-based quadtree and quadpatch grids. In addition to unstructured grid support, input and output formats for MODPATH also have been modified to minimize the difference between MODPATH simulations based on the different versions of MODFLOW.
Note: MODPATH version 7 only works with quadtree and quadpatch grids if they have a north-south orientation
Software License and Purchase Information
This software is a product of the U.S. Geological Survey, 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.
As a work of the United States Government, this USGS product is in the public domain 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/ ).