Southeast of Salem and east of Mehama, the North Santiam River is popular with fly fisherman. The North Santiam River starts in the Cascades and flows west for 90 miles to the Santiam River confluence. The North Santiam River is known for its Wild Winter Run Steelhead from January through April, but there are plenty of native rainbow trout and cutthroat trout to be found in the summer.
The best section for fly fishing on the North Santiam River is from Gates downstream to Mehama. There is good access provided from the North Santiam State Park off SR22 for wading. If you are in for a float, try putting in just downstream of Big Cliff.
Overall, North Santiam River is the 17th most popular fly fishing river of all 22 fly fishing spots in Oregon.