FIELD TRIP COMMITTEE, ANNUAL MEETINGS, THE GEOLOGICAL SOCIETY OF AMERICA AND ASSOCIATED SOCIETIES Daniel F. Merriam, State Geological Survey of Kansas, General Co-Chairman Gary F. Stewart, State Geological Survey of Kansas, General Co-Chairman John W. Koenig, Missouri Geological Survey, Co-Chairman (with James H. Williams, Missouri Geological Survey) Donald E. Hattin, Indiana University John W. Harbaugh, Stanford University Charles W. Collinson, Illinois State Geological Survey Editor's Note: Special acknowledgment is made of the efforts of members of the staff, State Geol- ogical Survey of Kansas, who assisted in preparation of the guidebook: particularly Mrs. Nan Carnahan Cocke, Mrs. Beth Clark Kolars, Mrs. Marilyn Prall, Miss Sharon Hagen, Mrs. Janyce Chaney, and Mrs. Carol Roper. Gary F. Stewart State Geological Survey of Kansas