The Intertwine trail counts and surveys project could not have been accomplished without the help of local partners and volunteers. Metro partnered with the cities of Cornelius, Gresham, Hillsboro, Lake Oswego. Oregon City, Portland, Sandy, Tigard, Tualatin, Vancouver, West Linn and Wilsonville and with Clackamas and Clark Counties, Oregon Department of Transportation, Oregon Parks and Recreation and Tualatin Hills Park and Recreation District on project coordination and training.