Invasive Species Technical Notes (Montana)
USDA. NRCS. Montana.
Includes many invasive plant management resources.

Mapping Noxious Weeds in Montana (PDF | 433 KB)
Montana State University - Bozeman. Extension Service.

Montana Aquatic Nuisance Species (ANS) Management Plan Final (Oct 15, 2002; PDF | 2.08 MB)
Aquatic Nuisance Species Task Force.
Produced by: Montana Aquatic Nuisance Species (ANS) Technical Committee, A subgroup of The Montana ANS Steering Committee

Montana Fish & Wildlife Conservation Strategy
Association of Fish and Wildlife Agencies. State Wildlife Action Plans.

Montana Knapweeds: Identification, Biology and Management (Revised Mar 2001)
Montana State University - Bozeman. Extension Service.

Montana Noxious Weed Survey and Mapping System (PDF | 222 KB)
Montana State University - Bozeman. Extension Service.

Montana Weed Management Plan (Jan 2005; PDF | 6.5 MB)
Montana Department of Agriculture.
Weed Summit Steering Committee and Weed Management Task Force in Cooperation with Federal and State Agencies, County Weed Districts, Private Land Managers

Montana Weed Management Plan (Jan 2005; PDF | 6.5 MB)
Montana Department of Agriculture.
Weed Summit Steering Committee and Weed Management Task Force in Cooperation with Montana Weed Control Assocation, Federal and State Agencies, Montana University System, County Weed Districts, and Private Land Managers