2017 Map of Petersburg C-6 NE

About this map

Keku Strait serves as the central waterway in this 2017 study of the Alexander Archipelago, dividing the shorelines of Kuiu Island to the west and Kupreanof Island to the east. This maritime environment is defined by a complex network of small islands and navigational narrows, including the intricate waters of Rocky Pass and the tight squeeze at The Summit. The entire landmass shown falls within the Tongass National Forest, illustrating a landscape of tidal flats and wooded coastlines largely untouched by modern development. Significant coastal features like Summit Island, Beck Island, and the uniquely named Brown Bear Head Island punctuate the strait, while drainage from the interior is marked by Mud Cr and Irish Cr. The map provides a detailed view of the inter-island passages and high-tide zones that have long dictated movement through this section of Southeast Alaska.