This tour also leaves Northampton by the Coolidge Memorial Bridge, but at Hadley (3.0) it turns north on State Highway 63 and follows the river to Sunderland. Here the route recrosses the river, joining Federal Highway 5 at South Deerfield, and from this point south to Northampton the road lies almost literally in the shadow of the western upland. In Hadley (3.0) the road turns north along Center Street and then swings right at the curve in the Connecticut (3.5). The river bank is lined with riprap to resist the current and to prevent the river from washing away a substantial section of the town. Across the stream in Hatfield the Connecticut very nearly achieved the type of destruction which the residents of Hadley are trying to escape, and the flood-channel, or “washout,” which was gouged by the swollen stream in the spring of 1936, may be seen (4.3) on the way to North Hadley. The road approaches Mount Warner, whose crystalline rocks appear at the south end of a long, low spur (4.8) on the edge of the river floodplain. Elsewhere along the base of the eminence, which scarcely merits the name “Mount,” the crystalline rocks are hidden by a terrace, but they crop out on the higher slopes. The younger red Triassic sandstones are present, too, and they may be seen dipping steeply westward in the brook bed between the bridge (5.9) and the dam (6.1) at North Hadley. Sand dunes appear near the river on the outskirts of North Hadley (6.3) and extend north beyond Mount Warner (7.0) to the point where the road drops from the terrace to the floodplain (8.2). Here the former bed of the river is occupied by a puny brook, which enters the mainstream on the left. The terrace marking the edge of the floodplain lies close to the east side of the road for a long distance (8.2 to 9.8) and then swings a half mile eastward. The road follows a high area between two abandoned channels formerly used by the river (11.3), until it joins the Amherst-Sunderland road (11.8) at the southern edge of Sunderland. The route turns left in the center of town (12.4), crossing the river beneath Mount Sugarloaf, and it continues on to Federal Highway 5 at the traffic light in South Deerfield (14.2). On the trip south from the junction, sand dunes appear east of the railroad between the Boston & Maine (14.6) and the New Haven crossings (14.9). The highway is situated on the flat bed of Lake Hadley from this point to Hatfield. The road to Whately, which turns west at 16.7, offers some attractions. It forks two miles beyond Whately, and the right branch leads to the Northampton reservoir and to Haydenville (see p. 89). The left branch follows West Fork Brook and comes back to Federal Highway 5 at North Hatfield (19.1). Either route provides a scenic drive over little-frequented gravel roads.