MODFLOW-USG Version 1.1 08/23/2013

Downloaded from http://water.usgs.gov/ogw/mfusg/mfusg.1_1.zip
MODFLOW-USG Version 1.2.00 03/21/2014

Downloaded from http://water.usgs.gov/ogw/mfusg/mfusg.1_2_00.zip