This is the approved USGS Model Viewer for MODFLOW 6 1.0.0 release.
Hsieh, P.A., and Charlton, S.R., 2022, Model Viewer for MODFLOW 6 Graphical User Interface 1.0.0: U.S. Geological Survey Software Release, 12 April 2022, https://doi.org/10.5066/P9UHN4YB