Join Friends of Oaks Bottom, SOLVE and Portland Parks and Recreation to keep Oaks Bottom Wildlife Refuge clean for trail users and wildlife! Oaks Bottom Wildlife Refuge is a 163-acre floodplain wetland that sits along the east bank of the Willamette River, OR, and is the largest remaining natural area within the lower reach of the Willamette-providing necessary habitat for fish and wildlife. Native wildlife populations include threatened salmon and more than 175 species of birds. No experience is necessary but you must sign-up in advance!  Details HERE.