It is formed by the confluence of Sam Creek and West Branch in the Siuslaw National Forest of the Central Oregon Coast Range.

Generally open from May 1 to December 1, it has seven dispersed campsites and a vault toilet but no drinking water.

[6] The river, which supports populations of Chinook salmon, cutthroat trout, and steelhead, is open to fishing from boats downstream of Minerva and from the bank further upstream.

[7] Bender Landing County Park, off North Fork Road near Florence, has a boat ramp, picnic tables, toilets, and access to fishing.

[8] Sam Creek and West Branch form the river.