Founded in September 1998, our chapter is named "Cheahmill" from the Kalapuyan people who inhabited the region which came to be called Yamhill. The Yamhill watershed is the geographic region we focus on, which includes Willamette Valley species as well as Coast Range species.
Monthly programs run September through May at the Carnegie Building, McMinnville Public Library, 225 NW Adams, McMinnville. Field trips are held in spring and summer.
* Establishment of a Native Plant Garden at the McMinnville Public Library
* Collaboration with Yamhill County Soil and Water Conservation District (SWCD) on their annual native tree and shrub sale in February
* Partnering with Yamhill County Parks & Recreation and Yamhill Basin Council to restore native riparian vegetation communities in county parks
* Co-sponsorship with Linfield College of special programs on natural history
* Annual spring wildflower show and native plant sale in May
* Deer Creek County Park: wet prairie restoration and monitoring; riparian planting.
* Tice Park, City of McMinnville: wetland delineation; species inventory.
* Wrex Kruse County Park: upland tree planting
* Ed Grenfell County park: riparian vegetation planting
* Rogers Landing County Park: native species planting.
Plant lists compiled for Oregon Flora Project
* Deer Creek County Park
* Confluence of Deer Creek and South Yamhill River Airport Park, City of McMinnville
* Tice Park, City of McMinnville
For schedule of meetings & field trips, see the Cheahmill Section of the NPSO Calendar page.