Multnomah Falls, Oregon 1. Multnomah Falls From the Highway Take Highway I-84 eastbound to the Troutdale exit. Follow signs for the Scenic Loop Drive. Follow the drive along the old Columbia River Highway, the first in our nation to be named a National Historic Landmark. From I-84 the exit 31, a left-side exit, to the parking area.f ⇦ Back to Page 12 On to Page 2 ⇨Return to Multnomah Falls Page 1 |