Juneau Nature

Natural & cultural history of Juneau & Southeast Alaska

Juneau Nature - Natural & cultural history of Juneau & Southeast Alaska

12 West Baranof

West Baranof Biogeographic Province

Tree size and logging in West Baranof Province. Almost all cut forest (pink) was originally large-tree (dark green).

Tree size and logging in West Baranof Province. Almost all cut forest (pink) was originally large-tree (dark green).

West Baranof Island has steep, angular mountains of granitic, non-carbonate sedimentary, metasedimentary, and volcanic rocks in the actively rising Chugach terrane.  L’ux, blinking (Mt. Edgecumbe) is the only postglacial volcano in Southeast. Deep ash soils date to its eruptions 12,000 to 14,000 years ago. Angular basalt formations on Saint Lazaria form ideal nesting perches for hundreds of thousands of seabirds, including fork-tailed and Leach’s storm petrels, murres, puffins, gulls and cormorants.

Bare earth from IfSAR-generated digital elevation model (DEM) Tlingit place names from the 2012 cultural atlas (Thornton & Martin, eds).

Bare earth from IfSAR-generated digital elevation model (DEM) Tlingit place names from the 2012 cultural atlas (Thornton & Martin, eds).

Aside from the low-gradient Edgecumbe peatlands, the province is very rugged. Mt. Annahootz, 4,301 ft, is the highest peak in this province. Here’s a map for the Sitka area:

Bare earth from IfSAR-generated digital elevation model (DEM) Tlingit place names from the 2012 cultural atlas (Thornton & Martin, eds).

Bare earth from IfSAR-generated digital elevation model (DEM) Tlingit place names from the 2012 cultural atlas (Thornton & Martin, eds).

Notes from a ground-truthing expedition to Peril Strait in 2007 are in Northern Baranof Island: past, present and future. Field survey and landscape analysis