Puget Sound Feeder Bluff

December 30, 2020

Puget Sound Feeder Bluff

Photographer: Rebecca Roush
Summary Author: Rebecca Roush

The shoreline of Puget Sound in the state of Washington has many bluffs of sediment (till) deposited by multiple glacial advances that began around two million years ago and ended about 15,000 years ago. When a bluff sheds soil to the beach below it's called a feeder bluff, as seen above at Southworth Point. Feeder bluffs continuously build beaches as they deposit sediment, resulting in the ongoing integrity of natural habitats and revitalization of beaches. Attempts to forestall this process by building bulkheads and the like are sometimes called armoring. This disrupts the natural beach-building process. As our climate continues to change and the sea levels rise, beaches where there's no armoring stand a better chance of surviving. Photo taken November 2, 2020.

Photo Details: Camera: Samsung SM-G986U; Exposure Time: 0.0057s (1/174); Aperture: ƒ/2.0; ISO equivalent: 25; Focal Length (35mm): 28