#potholescoulee
October 25, 2026 at 9:58 PM
#PotholesCoulee#AncientLake
#George#Quincy#ColumbiaRiver
#cataract#basalt#DustyLake

Basalt blade
between
Ancient Lake and
Dusty Lake at
Potholes Coulee near
the Columbia River

200’ cliffs and two large
horseshoe canyons
carved by ice age water
15,000 years ago
October 11, 2026 at 1:51 AM
August 30, 2026 at 12:53 PM
October 25, 2025 at 9:42 PM
August 6, 2025 at 5:07 PM