Whitman Mission National Historic Site is in southeastern Washington. It includes the site of an Indian mission and school established in 1836 by Marcus Whitman and his wife. The mission was a landmark on the Oregon Trail, and the school was the first mission school in the Pacific Northwest. The mission was made a national monument in 1936 and became a national historic site in 1963. For area, see National Park System (table: National historic sites) .
