Eightmile Creek Falls is a seasonal waterfall on Eightmile Creek in Washington near the Columbia River in the Columbia River Gorge. Located north of State Route 14 east of Horsethief Lake at about 450 feet above sea level, it drops over rimrock into a narrow slot canyon. After the plunge, the stream bends sharply before reaching the Columbia. Because the slot canyon can dry out late in the season, the falls are notable not as a constant year-round cascade but as a waterfall whose appearance depends strongly on seasonal flow.