File problems.txt This file briefly describes the test problems distributed with MODFLOW-2005. For each test problem, the name of the name file is the name of the test problem followed by a period and the extension "nam". All files for a given test problem share the test-problem name as a common filename base. 6. Test problem mnw1: Problem documented in Halford and Hanson (2002), modified to work with MODFLOW-2005. Grid dimensions: 2 Layers, 21 Rows, 14 Columns Stress periods: 1 steady, 4 transient Flow package: BCF Stress packages: MNW, DRN, RCH, CHD Solver: PCG Types of parameters defined / package: none REFERENCES Halford, K.J. and Hanson, R.T., 2002, User guide for the Drawdown-Limited, Multi-Node Well (MNW) Package for the U.S. Geological Survey's modular three-dimensional finite-difference ground-water flow model, version MODFLOW-96 and MODFLOW-2000: U.S. Geological Survey Open-File Report 02-293, 33 p.