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Northern Great Plains Exotic Plant Management Plan Completed

Fort Union Trading Post National Historic Site

National Park News

The National Park Service (NPS) has completed the Northern Great Plains Exotic Plant Management Plan (EPMP) and Environmental Assessment (EA) by issuing a Finding of No Significant Impact (FONSI) for Integrated Pest Management, the preferred alternative. NPS Midwest Regional Director Ernest Quintana and Acting Intermountain Regional Director Mike Snyder approved the FONSI based on the EA and as recommended by the parksÂ’ superintendents.
The NPS Northern Great Plains (NGP) Exotic Plant Management Team (EPMT), park staffs and Greystone Environmental Consultants, Inc. (contractor) worked nearly two years developing the plan. The plan includes 13 parks: Agate Fossil Beds National Monument, Devils Tower National Monument, Fort Laramie National Historic Site, Fort Union Trading Post National Historic Site, Jewel Cave National Monument, Knife River Indian Villages National Historic Site, Minuteman Missile National Historic Site, Missouri National Recreational River, Mount Rushmore National Memorial, Niobrara National Scenic River, Scotts Bluff National Monument, Theodore Roosevelt National Park, and Wind Cave National Park.
With planning and compliance completed, the NPS will implement the NGP EPMP to control exotic (non-native) plants at these parks located in the NGP area. The intent of this plan is to manage exotic plants to reduce their negative effects on native plant communities and other natural and cultural resources within these parks. Integrated Pest Management (IPM) is a decision making process that coordinates knowledge of pest biology, the environment, and available technology to prevent unacceptable levels of pest damage, by cost-effective means, while posing the least possible risk to people, resources, and the environment. Each exotic plant's natural history is evaluated before developing management strategies. IPM employs integrated management practices rather than a single solution, wherever technically and economically feasible. The treatment options in this plan include cultural, manual/mechanical, biological control, chemical, and prescribed fire. Individual treatments or combinations of these treatments will be implemented, as appropriate, by the NGP Exotic Plant Management Team (EPMT) and individual park teams to control exotic plants in the 13 parks. The NGP EPMP contains best management practices that are designed to minimize potential impacts to other park resources.
The NGP EPMP EA and FONSI can be downloaded from the project website at A printed copy may be requested by calling Chad Prosser at (701) 623-4730 x3578 or sending an email to For more information about the NGP EPMP, contact Jim Cheatham (, Chief of Resource Management for Devils Tower National Monument or Chad Prosser (, NGP Exotic Plant Management Team Liaison at Theodore Roosevelt National Park.


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