More resources may be found on the web:
Montana DOT Home Page
2020 Standard Specifications For Road & Bridge Construction - Section 716 "Geotextiles"
State QPL information:
Product Qualification Procedures
• The above information is to be used only as a guide.
• Products on the above list can change without notice.
US Fabrics is proud to serve the geotextile needs of the State of Montana, including:Billings, Missoula, Great Falls, Bozeman, Butte, Helena, Kalispell, Havre, Anaconda, Miles City, Belgrade, Livingston, Laurel, Whitefish, Lewistown, Sidney, Glendive, Columbia Falls, Polson, Hamilton, Dillon, Hardin, Shelby, Glasgow, Deer Lodge, Cut Bank, Libby, Wolf Point, Conrad, Colstrip, Red Lodge, Malta, East Helena, Columbus, Townsend, Ronan, Three Forks, Stevensville, Roundup, Forsyth, Baker, Big Timber, Choteau, Manhattan, Plentywood, Fort Benton, Thompson Falls, West Yellowstone, Chinook, Boulder, Plains, Whitehall, Eureka, Scobey, Browning, Harlowton, White Sulphur Springs, Troy, Pinesdale, Chester and all other areas of Montana.