Inspectioncurrent
NPMS FIPS 30023 / OPID 31632
NORTHWESTERN CORPORATION — Deer Lodge County, MT
Current as of source date Government source
Pipeline and Hazardous Materials Safety AdministrationOfficial agency material
View source Deer Lodge County, MTNORTHWESTERN CORPORATION (PHMSA OPID 31632) reported 26.516617 active Natural Gas pipeline miles in Deer Lodge County, MT (county FIPS 30023) 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.#