Join Us! Gros Ventre River Work Days

The Jackson Hole Weed Management Association (JHWMA) will be hosting Gros Ventre River Cooperative Spray Days July 18 – 20, 2017.

Partners in the JHWMA will team up to treat spotted knapweed, houndstongue, and Dalmatian toadflax as well as other invasive plants, which compete with native vegetation and adversely impact wildlife habitat. This multi-year project has been taking place for over 13 years.  The project area for this event is the Gros Ventre River corridor encompassing the town of Kelly, the National Elk Refuge, Grand Teton National Park and other public and private lands to the confluence of the Snake River. This project is being organized by Grand Teton National Park, Bridger-Teton National Forest and Teton County Weed & Pest District (TCWP).

The JHWMA Spray Days event is unique in that it pulls together groups from across western Wyoming.  “The goal is to contain and reduce the spotted knapweed infestation that is thought to have started on the Gros Ventre River in the 1970’s”, stated Erika Edmiston, Supervisor at TCWP. “Without this amazing group coming together for this team effort, we would be losing critical wildlife habitat to these invaders”.

Agencies and organizations that will assist in the project are:

Bridger-Teton National Forest, the National Elk Refuge, Grand Teton National Park, Teton County Weed and Pest District, WY Game and Fish Department, Teton Conservation District, Jackson Hole Land Trust, private individuals and others.  Everyone is welcome to join the effort for all or some of the three-day event. Contact TCWP for more information or to volunteer

“A lot of really great people have come together over the years to make progress on some awfully bad plants which negatively transform ecosystem function in wildlife habitat and an important elk migration area.” said Travis Ziehl, Jackson Hole Property Services.


We would like to thank the Teton Conservation District (TCD), Rocky Mountain Elk Foundation (RMEF) and the JHWMA for their contributions in making this event a success. To learn more about the JHWMA  please visit