Because of Barry Arm’s potential for a catastrophic collapse, the site has received special focus from agencies trying to track slope movement.

"It’s such a beautiful place in northwestern Prince William Sound … then you just have ... then the ensuing tsunami will destroy nearby communities as well as natural areas.

The site is a fjord where an unstable rocky slope could collapse into the water, potentially creating a tsunami affecting the community of Whittier and a variety of Prince William Sound mariners ...