The Chesterian section near Sulphur, Indiana
A remarkable exposure of early and middle chesterian (Late Mississippian) rocks is found at the junction of I-64 and Indiana 37 approximately 1 mi (1.5 km) north of Sulphur, Crawford County, Indiana (N½S½Sec.24,T.3S.,R.1W., Beechwood 7½-minute Quadrangle; Fig. 1). S me of the geological boundaries in the area are shown on the geologic maps prepared by Perry and Smith (1958, plate 2) and Gray and others (1970).
This site can be reached by exiting I-64 at its junction with Indiana 37 north from Tell City or south from IndianapolisBloomington, Bedford, or Paoli. Safe offroad vehicle parking on blacktop is present along Indiana 37 at its junction with all four interstate ramps. Examination of the upper part of the section requires the climbing of exposures that are revealed to best advantage in the northwestern road cuts.