Tongass Narrows

Tongass Narrows is defined as the water body that extends from the Revillagigedo Channel to the Gravina Island in Clarence Strait.

The south shores are low, flat, and wooded, with occasional open ground for 1–2 miles (1.6–3.2 km) back, where the land rises to the California Ridge.

[2] The geological formation of "green stone schist, Paleozoic" is noted on the narrows near Ketchikan on its eastern side and also on the Gravina Island.

[5] Some of the marine fauna noted in the Tongass are whales, sea lions, and herring in large numbers apart from salmon fishing near Ketchikan.

One of the marine events held here by the Ketchikan Yacht Club in summer season every Wednesday night and on occasions during weekends is the sailboat regatta.