Wikipedia doesn’t have a history of Pinnacle yet. The photos, dates and memories neighbors add here are how it gets written.
Pinnacle is an unincorporated community and census-designated place (CDP) in Flathead County, Montana, United States. It is in the eastern part of the county, along U.S. Route 2 in the valley of the Middle Fork Flathead River. It is 6 miles (10 km) north of Essex and 20 miles (32 km) southeast of West Glacier. The community is bordered to the east, across the Middle Fork, by Glacier National Park, and to the west by Flathead National Forest. Pinnacle was first listed as a CDP prior to the 2020 census. As of the 2020 census, Pinnacle had a population of 45.
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Pinnacle, 1914 to 1964
Woven from the archive, old maps, post office records, the National Register and the people born 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 U.S. Geological Survey historical maps, 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.