The Millstone Valley Scenic Byway is a 25 mile (40.2 km) historic scenic route located in the Millstone River Valley which lies in north central New Jersey. The byway offers a glimpse into the past where skirmishes between the local militia and British troops played a key role in the American Revolutionary War. This byway has been designated by the National Scenic Byways Program of the Federal Highway Administration as of 2009.[1]
The route travels along County Route 533 on the west bank of the Millstone and County Route 603 on the river's east side. The route loops back on the south side at County Route 518 and connects near the northern end via County Route 514.
Attractions along the route include the Delaware and Raritan Canal State Park, the relocated Rockingham site in Kingston, a section of Franklin Township, in Somerset County, and the 1860 House on Montgomery Road near Rocky Hill. The Kingston Village Historic District and the Kingston Mill Historic District are both located in the historic area of Kingston.