- The Mount Adams Recreation Area is a 21,000-acre (8,500 ha) recreation area in the U.S. state of Washington managed by the Yakama Nation Tribal Forestry Program. The area encompasses an ecologically complex and geologically active landscape. The region features the most rugged side of Mount Adams, including canyons and the Great Gap section of the Mount Adams circumnavigation route, a three-mile trail-less section over two great canyons and many difficult glacial creeks. At 12,276 feet (3,742 m), Mount Adams is one of the major Cascade mountains. The recreation area is on the east side of the mountain and is part of the Yakama Indian Reservation and includes the popular Bird Creek Meadows area.
- Lake Washington Ship Canal (Wikipedia)
The Lake Washington Ship Canal, which runs through the city of Seattle, connects the fresh water body of Lake Washington with the salt water inland sea of Puget Sound. The Hiram M. Chittenden Locks accommodate the approximately 20-foot (6.1 m) difference in water level between Lake Washington and the sound. The canal runs east–west and connects Union Bay, the Montlake Cut, Portage Bay, Lake Union, the Fremont Cut, Salmon Bay, and Shilshole Bay, which is part of the sound.