At the northern end of the Portage Waterway, where the canal meets the open waters of Lake Superior, the Keweenaw Waterway Upper Entrance Light stands within what is now McLain State Park. This lighthouse reflects decades of engineering work. Over time, this work transformed the Portage River into a vital passage across Michigan’s Keweenaw Peninsula. Early Navigation Improvements The Portage River was first dredged in 1860, creating a navigable shortcut that allowed vessels to cross the peninsula rather than sail around its exposed northern coast. As traffic increased, the need for reliable navigation aids at the waterway’s entrance became clear…. Read More »












