Enumclaw resident Andrea R. Brock died early Thursday when her pickup left state Route 410 and crashed into a tree.
Brock, 25, was traveling east on state Route 410 at 12:23 a.m., according to a report from the Washington State Patrol. Her 1986 Dodge Ram reportedly went off the pavement to the left before striking the tree.
The accident occurred about 15 miles east of Enumclaw.
Brock was pronounced dead at the scene. There were no passengers and no other vehicles involved.