Inspectioncurrent
NPMS FIPS 30041 / OPID 31632
NORTHWESTERN CORPORATION — Hill County, MT
Current as of source date Government source
Pipeline and Hazardous Materials Safety AdministrationOfficial agency material
View source Hill County, MTNORTHWESTERN CORPORATION (PHMSA OPID 31632) reported 67.619924 active Natural Gas pipeline miles in Hill County, MT (county FIPS 30041) 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.#