Photo of upper & lower Multnomah Falls near Corbett, Oregon.
Multnomah Falls is the tallest waterfall in Oregon. The falls drops in two major steps, split into an upper falls of 542 feet (165 m) and a lower falls of 69 feet (21 m), with a gradual 9 foot (3 m) drop in elevation between the two, so the total height of the waterfall is conventionally given as 620 feet (189 m).