Middle Fork Flathead River
river in the United States of America
The Middle Fork Flathead River is a 92-mile (148 km) river in western Montana in the United States, forming the southwestern boundary of Glacier National Park. Its drainage basin lies to the east of the South Fork Flathead River and the Hungry Horse Reservoir. Towns along the river include West Glacier, Nyack, Pinnacle, Essex, and Nimrod.
The river's headwaters lie in the Bob Marshall Wilderness at the confluence of two small streams, Strawberry Creek and Bowl Creek. From there, it runs north, receiving many tributaries from glacial valleys to the east and west, most of them inside Glacier National Park. The river begins to parallel U.S. Highway 2 as it winds north-northwest, and after a long and narrow course, the river enters a wider valley and begins to spread out and braid between meadows and forested slopes. It then enters another narrow gorge, turning generally westwards, then passing the southwestern entrance of the national park, receives a tributary from Lake McDonald, a large glacial lake to the north, from the right. The river then proceeds southwest to meet the North Fork Flathead River, southwest of West Glacier and northeast of Columbia Falls, forming the main stem of the Flathead River, which eventually flows into the Clark Fork River (the Pend Oreille River).
The public source identifies “Middle Fork Flathead River” as river in the United States of America. This brief keeps that definition visible, then builds a research path around Middle, Fork and Flathead.
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Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Aug 5, 2026. The linked authority identifier is Q334781. Authority coordinates are 47.996, -113.501. 2 of 2 selected statements include explicit references; 2 carry qualifiers and 0 use preferred rank.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Middle Fork Flathead River” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.