NORTHWESTERN CORPORATION — Flathead County, MT

Current as of source date Government source

Pipeline and Hazardous Materials Safety AdministrationOfficial agency material

Flathead County, MTNORTHWESTERN CORPORATION (PHMSA OPID 31632) reported 83.639585 active Natural Gas pipeline miles in Flathead County, MT (county FIPS 30029) in the public NPMS summary snapshot dated 2026-07-16. The snapshot includes active assets only and excludes permanently abandoned assets. Exact pipeline locations and restricted NPMS GIS data are not included.#