tallus cave

This tallus cave was formed when rocks fell randomly off the north canyon wall. White patches are believed to be encrusting sponges, but further analysis is needed to confirm the initial reports. Water depth is 150 m. Image courtesy of Lewis and Clark 2001, NOAA/OER.

Related Links

Lewis and Clark Legacy

Lewis and Clark Legacy: Visiting the Frontier: Diving into Astoria Canyon, June 26 – July 3, (Phase 2), Expedition Summary

Living Ocean Photo Gallery