MODFLOW-2005 version 1.12.00

This is the approved USGS MODFLOW-2005 1.12.00 release.

Harbaugh, A.W., Langevin, C.D., Hughes, J.D., Niswonger, R.N., and Konikow, L. F., 2017, MODFLOW-2005 version 1.12.00, the U.S. Geological Survey modular groundwater model: U.S. Geological Survey Software Release, 03 February 2017, http://dx.doi.org/10.5066/F7RF5S7G

Visit the USGS "MODFLOW and Related Programs" site for information on MODFLOW-2005 and related software: https://www.usgs.gov/science/mission-areas/water-resources/science/modflow-and-related-programs