ISBN: | 978-5-5138-9608-1 |
High Quality Content by WIKIPEDIA articles! Willow Creek is a 79-mile (127 km) long tributary of the Columbia River, located in the U.S. state of Oregon. It drains 880 square miles (2,279 km2) of Morrow and Gilliam counties. Arising in the Blue Mountains, it flows generally northwest to its confluence with the Columbia River upstream of Arlington.