1991 Map of Ketchikan B-5 NW

About this map

Revillagigedo Island presents a landscape defined by its deep freshwater lakes and high peaks within the Tongass National Forest. This 1991 provisional survey highlights the hydrologic system feeding into George Inlet, where glacial and rainwater runoff flows through Ketchikan Creek and Beaver Falls Creek. The terrain is marked by named summits like Dude Mountain and Brown Mountain, which overlook a network of lakes including Harriet Hunt Lake and Lake Emery Tobin. The presence of the Mahoney Mine near Mahoney Lake indicates the industrial history of the region, while the Boardwalk near Perseverance Lake suggests localized infrastructure for traversing the saturated terrain. This map serves as a detailed record of the island's interior before modern developments, tracing the exact positions of high-altitude water bodies like Upper Silvis Lake and Lower Silvis Lake.