Explore Southeast Alaska today! Southeast Alaska is an awe-inspiring region of glacier-cut fjords and islands blanketed with dense rainforest. Southeast Alaska consists of thousands of islands of various sizes which consist of nearly 10,000 miles of shoreline along the islands and mainland which are separated by sounds, straits, canals, narrows, passages, and channels.Features included on this wall map of Southeast Alaska: Cities State Borders Secondary Roads National Parks Physical/Terrain International Borders Latitude/Longitude lines Legend Explore Southeast Alaska today! Southeast Alaska is an awe-inspiring region of glacier-cut fjords and islands blanketed with dense rainforest. Southeast Alaska consists of thousands of islands of various sizes which consist of nearly 10,000 miles of shoreline along the islands and mainland which are separated by sounds, straits, canals, and more.