The Beaver Dam exposure is reached by taking Arkansas 187 south from its junction with U.S. 62 immediately south of Busch, Arkansas (Fig. 1). Arkansas 187 crosses Beaver Dam and a turnoff to the dam site overlook is located approximately 0.25 mi (0.4 km) south of the dam. Parking maybe found at the overlook. This exposure occupies NW¼Sec.10, T.20N., R.27W., Carroll County, Arkansas.