Our mission

The Columbia Gorge Cooperative Weed Management Area (CWMA) exists to foster and support collaborative weed management among public land managers and private landowners in the Columbia River Gorge. Because weeds travel over the landscape and extend across multiple ownerships, collaboration and partnerships are essential for effective weed management. In addition, partnerships increase capacity, efficiency, and knowledge. The intention of the CWMA is to provide guidance to local government and land managers on methods for utilizing available resources to control invasive weed problems regardless of political boundaries.

Ways to support the CWMA


Join our growing list of member organizations to help fight invasive weeds in the Columbia Gorge.


Participate in our meetings, events, and committee activities.

Become a sponsor and support regional weed coordination, resource development, outreach activities, and more.

Stay in the loop

Join our email list to receive CWMA updates, regional weed information, and more!