Location The site consists of eight stops in the Kingsbury, Skowhegan, and Waterville Quadrangles of central Maine (Fig. 1). A currentroadmap and geologic maps of these quadrangles (Osberg, 1968;Ludman, 1977, 1978) are recommended for navigation and for amore complete geologic description than can be given here. Stoplocations follow, along with driving instructions for travel betweenstops. Stop 1. NW Kingsbury Quadrangle at intersection of Maine 16 and 151 (45°06'12„N, 69°41'27„W). Drive south on Maine 151 to Athens and turn left (east) onto Maine 150. Drive 3.75 mi (6 km) to large roadcuts on south side of road at Lords Hill. Stop 2. Skowhegan Quadrangle, series of outcrops on Maine 150 between Lords Hill and Harmony town line. Drivewest on Maine 150 through Athens, park just west of Wesserunsett Stream, and walk north up long driveway to ask permissionat the house. Stop 3 is in the stream east-northeast of the house. Stop 3. Skowhegan Quadrangle in Wesserunsett Stream 800 to 1,000 ft (250 to 300 m) north of Maine 150 (44°55'28„N,69°40'22„ W. Follow Maine 150 south to Skowhegan and turneast onto U.S. 2. Park east of Coburn Park on south side of the Great Eddy of the Kennebec River.