MODFLOW Version 6.4.0
This is the approved USGS MODFLOW 6.4.0 release.
Langevin, C.D., Hughes, J.D., Provost, A.M., Russcher, M.J., Niswonger, R.G., Panday, Sorab, Merrick, Damian, Morway, E.D., Reno, M.J., Bonelli, W.P., and Banta, E.R., 2022, MODFLOW 6 Modular Hydrologic Model version 6.4.0: U.S. Geological Survey Software Release, 30 November 2022, https://doi.org/10.5066/P9FL1JCC
Visit the USGS "MODFLOW and Related Programs" site for information on MODFLOW 6 and related software: https://doi.org/10.5066/F76Q1VQV