Multnomah Falls, Oregon 6. Lower Falls The Multnomah Falls is on a tributary of the Columbia River in Oregon, USA. The Falls is 189 meters in height. Glaciers formed the Multnomah Falls thousands of years ago. The Multnomah Falls are a cascade type of waterfall. The Multnomah Falls plummet from Multnomah Creek. In winter, the Falls may become a trickle. Occasionally they have been frozen solid. ⇦ Back to Page 5   On to Page 7 ⇨Return to Multnomah Falls |