Cascade Locks is about 35 miles east of Portland, Oregon. Go east on Hwy 84 and follow the signs to Cascade Locks. You'll know you're getting close when you see the bridge off to the left of the highway.
The Best Western Hotel in Cascade Locks is a great location to stay while photographing the Columbia River Gorge. This photo was taken nearly an hour after sunset, with a 25 second exposure. I love the light reflecting on the river itself.