MFI2K U.S. Geological Survey ABSTRACT MFI2K is a data input (entry) program for the U.S. Geological Survey modular three-dimensional finite-difference ground-water model called MODFLOW-2000. Data for MODPATH, a particle tracking program for use with MODFLOW, can also be entered using MFI2K. MFI2K is designed to be easy to use. It can also be used in conjunction with other programs so that the different parts of a model data set can be entered using the most suitable program. Data are entered in MFI2K interactively through a series of display screens. HISTORY Version 1.1 12/13/2005 - Update that fixes a few bugs, adds a browse pushbutton for selecting separate data files, adds an open pushbutton to open a new data set, and adds an internal editor for arrays and lists. Version 1.0 6/5/2002 - Initial version of MFI2K SYSTEM REQUIREMENTS MFI2K runs on personal computers that use one of the windows operating systems: Windows 95, Windows 98, Windows ME, Windows NT, Windows 2000, or WINDOWS XP. DOCUMENTATION Harbaugh, A.W., 2002, A data input program (MFI2K) for the U.S. Geological Survey modular ground-water model (MODFLOW-2000): U.S. Geological Survey Open-File Report 02-41. CONTACTS U.S. Geological Survey Office of Ground Water Arlen Harbaugh 411 National Center Reston, VA 20192 harbaugh@usgs.gov