The Calapooia River is a tributary of the Willamette River located in the state of Oregon. It flows approximately 70 miles through the Willamette Valley, starting in the Cascade Range and winding through various landscapes, including forests and agricultural areas. The river is known for its scenic beauty and recreational opportunities, such as fishing and kayaking. The river's watershed supports diverse wildlife and plant species, contributing to the ecological health of the region. The Calapooia River also plays a role in local history, as it was significant to the Kalapuya people, the Indigenous inhabitants of the area. Today, efforts are being made to restore and protect the river's natural habitat.