Washington. Chief Joseph Dam, part of the Seattle District, is located on the Columbia River in beautiful eastern WA. One late spring to late autumn volunteer position for a single or couple. Includes private RV site. Requires mostly simple labor ability and public education skills at 20 hours a week. Very adaptable to your needs. (No gatekeeping or campground positions available here.) Quiet, laid-back, agricultural community. Contact Theresa Poulson  Park Ranger: 509-449-8359  preferably use email: [email protected] Chief Joseph Dam, PO Box 1120, Bridgeport, WA 98813.