The Kittitas Valley was occupied by the Kittitas (Yakama Ichishkíin Sínwit: Ki-tatash) or Upper Yakama tribe, as well as hunting and food gathering parties of Cayuse and Nez Perce. The area was rich in wild berries, fish and game, and neighboring tribes annually converged on the valley in April or May to harvest Indian onions (Allium spp.), Indian potatoes (Claytonia lanceolata), and breadroot (Lomatium canbyi). The various tribes engaged in horse trading with early British and American fur traders, and had peaceful relations with Jesuit Catholic missionaries who preceded them.
Nothing in the archives for these yearsWeddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021). How TownRatings grades history →
From Wikimedia Commons (12), the National Register of Historic Places (2), Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.