Multnomah Falls, located in Columbia River Gorge, and features an upper and lower falls, is at 620 ft the tallest waterfall in the State of Oregon. The falls is named after The Multnomah, a tribe of the Chinookan People, Native Americans who inhabited the region around Portland before the arrival of Europeans to Oregon. The falls is fed both by underground springs from Larch Mountain, but also seasonal runoff from rainfall and snow melt.