Report describes results of Phase 1 archaeological & geomorphological survey of 121 ac. within the Batchtown Habitat Rehabilitation Enhancement Project (HREP), Pool 25, Mississippi River (mile 242 to mile 248, left bank), Calhoun County, Illinois. The project involves construction/enlargement of levees and 7 water control structures. Pedestrian survey and shovel testing located 3 prehistoric sites (11-C-2O6, 11-C-2O8, 11-C-209), 3 historic sites (11-C-2O5, 11- C-207, 11-C-211), and 1 prehistoric & historic site (11-C-21O). Potentially eligible sites 11-C-2O7, 11-C-2O8, 11-C-2O9 & 11-C-21O will be avoided by the project. Geomorphological investigations revealed land forms with potential for buried sites in the project's central portion; other areas have very little potential for containing cultural deposits. Project clearance in surveyed areas in regard to cultural resources is recommended. Survey was conducted in June, 1994 by American Resources Group, Ltd., for the U.S. Army Corps of Engineers, St. Louis District on lands managed for waterfowl by the U.S. Fish & Wildlife Service and the Illinois Department of Natural Resources. The project is planned under the HREP, Environmental Management Program (EMP) established to enhance & rehabilitate the Upper Mississippi River system. (AN).