Directions: North 50 acre unit: 1 mile W of Zimmerman within Sec. 7, T34N, R26W. South 120 acre unit: 1 mile S of Zimmerman within Section 17, T34N, R26W. Description: North Unit: Area is mostly burr/pin oak forest community with scattered openings. A larger sedge/cattail wetland flanks the border. South Unit: Area is approximately 1/3 remnant prairie, 1/3 wetland, and 1/3 burr/pin oak forest.