Cheney Tertiary Wetlands serves as both the third and final enhancement of the Cheney Wastewater Treatment and Reclamation Facility, and also as a looped trail system just outside the city of Cheney. The trail system circles around three main treatment area-constructed wetlands on the nearly 400 acre property that includes other smaller wetland and marsh areas.
It's easy to forget this is a human-created wetland while hiking on mainly natural surface trails (with some gravel-lined paths). Completed in 1995, the wetlands now boast mature trees and lush wetland plant growth, and it attracts a wide variety of waterfowl. A wetland observation blind is located on the edge of the farthest wetland pond to the northeast, and a trailside observation bench is located next to the kiosk on the southwest pond.
Cheney Tertiary Wetlands is accessed from the Columbia Plateau State Park Cheney Trailhead, so a Discover Pass is required for parking. There are accessible CXT outhouses and covered picnic tables located at the trailhead. Start by hiking approximately 0.25 mile northeast on the Columbia Plateau State Park Trail. At the spur to the wetland take a slight right and walk to the wetland trail kiosk with a map of the trail system. The system consists of both loop routes and short spur trails, creating options for a hike of varied distance and terrain. Most of the main trails are hardpacked gravel, but some of the spur trails include narrow singletrack with both steep and rocky trail segments.