- Oso, Washington (Wikipedia)
Oso is a census-designated place (CDP) in Snohomish County, Washington, United States. It is located to the west of Darrington, south of the North Fork of the Stillaguamish River and approximately 50 air miles (80 km) from Seattle. The population of Oso was 172 at the 2020 census. The area was the site of a large landslide in March 2014 that killed 43 people, the deadliest incident of its kind in U.S. history.
- Arlington, Washington (Wikipedia)
Arlington is a city in northern Snohomish County, Washington, United States, part of the Seattle metropolitan area. The city lies on the Stillaguamish River in the western foothills of the Cascade Range, adjacent to the city of Marysville. It is approximately 10 miles (16 km) north of Everett, the county seat, and 40 miles (64 km) north of Seattle, the state’s largest city. As of the 2020 U.S. census, Arlington had a population of 19,868; its estimated population is 20,075 as of 2021.
- The Stillaguamish River is a river in the northwestern region of the U.S. state of Washington. It is mainly composed of two forks, the longer North Fork Stillaguamish (45 miles (72 km)) and the South Fork Stillaguamish. The two forks join near Arlington. From there the Stillaguamish River proper flows for 22 miles (35 km) to Puget Sound. The river’s watershed drains part of the Cascade Range north of Seattle.
- 2014 Oso landslide (Wikipedia)
A major landslide occurred 4 miles (6.4 km) east of Oso, Washington, United States, on March 22, 2014, at 10:37 a.m. local time. A portion of an unstable hill collapsed, sending mud and debris to the south across the North Fork of the Stillaguamish River, engulfing a rural neighborhood, and covering an area of approximately 1 square mile (2.6 km2). Forty-three people were killed and 49 homes and other structures destroyed. The landslide has been described as one of, if not the most, deadly landslide in American history.
- Puget Sound (Wikipedia)
Puget Sound (/ˈpjuːdʒɪt/ PEW-jit) is a sound of the Pacific Northwest, an inlet of the Pacific Ocean, and part of the Salish Sea. It is located along the northwestern coast of the U.S. state of Washington. It is a complex estuarine system of interconnected marine waterways and basins, with one major and two minor connections to the open Pacific Ocean via the Strait of Juan de Fuca—Admiralty Inlet being the major connection and Deception Pass and Swinomish Channel being the minor.
- Granite Falls, Washington (Wikipedia)
Granite Falls is a city in Snohomish County, Washington, United States. It is located between the Pilchuck and Stillaguamish rivers in the western foothills of the Cascade Range, northeast of Lake Stevens and Marysville. The city is named for a waterfall north of downtown on the Stillaguamish River, also accessible via the Mountain Loop Highway. It had a population of 3,364 at the 2010 census.
- Pilchuck River (Wikipedia)
The Pilchuck River (Lushootseed: dxʷkʷiƛ̕əb) is a river in Snohomish County in the U.S. state of [Washington](Washington. It is a tributary of the Snohomish River. The name is derived from the Chinook Jargon pilpil (“blood”, “red”) and chuck (“water”), or “red water”. The Lushootseed name means “flowing red,” kʷiƛ̕ being an archaic term for “red” in Northern Lushootseed.
- Washington (state) (Wikipedia)
Washington (/ˈwɒʃɪŋtən/), officially the State of Washington and often referred to as Washington state to distinguish it from the national capital, Washington, D.C., is a state in the Pacific Northwest region of the Western United States. Named for George Washington—the first U.S. president—the state was formed from the western part of the Washington Territory, which was ceded by the British Empire in 1846, by the Oregon Treaty in the settlement of the Oregon boundary dispute. The state is bordered on the west by the Pacific Ocean, Oregon to the south, Idaho to the east, and the Canadian province of British Columbia to the north. It was admitted to the Union as the 42nd state in 1889. Olympia is the state capital; the state’s largest city is Seattle.
- Cascade Range (Wikipedia)
The Cascade Range or Cascades is a major mountain range of western North America, extending from southern British Columbia through Washington and Oregon to Northern California. It includes both non-volcanic mountains, such as many of those in the North Cascades, and the notable volcanoes known as the High Cascades. The small part of the range in British Columbia is referred to as the Canadian Cascades or, locally, as the Cascade Mountains. The highest peak in the range is Mount Rainier in Washington at 14,411 feet (4,392 m).