CAUTION. Be alert for motorized, recreational boat traffic for the next 2+ miles. RM 39.1 to 36.6 (40.147130, -75.522970 to 40.148926, -75.505611)

The pool behind Black Rock Dam begins here. Expect fast boats, water skiing, and personal watercraft for the next 2+ miles, especially on RR. Avoid the middle of the river and stay alert, especially where bends and bridges obstruct your view.