"Banks Lake" by NPS/Dubar , public domain

Ice Age Floods

Cheney-Spokane (Northeast WA)

brochure Ice Age Floods - Cheney-Spokane (Northeast WA)

Brochure of Cheney-Spokane (Northeast 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