"Banks Lake" by NPS/Dubar , public domain

Ice Age Floods

Puget Lobe (Seattle, WA)

brochure Ice Age Floods - Puget Lobe (Seattle, WA)

Brochure of Puget Lobe (Seattle, WA) part of Ice Age Floods National Geologic Trail (NGT) in Washington, Oregon, Idaho and Montana. Published by the Ice Age Floods Institute

source

iafi.org

also available

National Parks
USFS NW