At the southern end of a long breakwater on Lake Superior stands the Keweenaw Waterway Lower Entrance Light, also known as the Portage Entry Light. Positioned at the mouth of the Portage River, this lighthouse has guided vessels into one of the most important interior waterways on Michigan’s Keweenaw Peninsula. Opening a Route Across the Peninsula The Portage River was first dredged in 1860, creating a navigable route that allowed vessels to cross the Keweenaw Peninsula rather than travel around its rugged northern shoreline. As traffic increased, it quickly became clear that reliable navigation aids were needed to mark the… Read More »












