Bureau of Land Management, Oregon.
The Clackamas River is located to the west of the Cascade Range and to the south of the Columbia River Gorge in northern Oregon. Flowing northwest from its sources high in the Cascade Mountains, the designated portion of the river, which is 47 miles (75.6 km) in length, runs from Big Spring (headwaters area) to Big Cliff, just south of the town of Estacada. This most picturesque region is entirely within the Mt. Hood National Forest and encompasses forested lands, wetlands, riparian areas and rock cliffs.
Of the 47 miles of the river that carry the wild and scenic designation, the Bureau of Land Management manages a small-but-important portion: six-tenths of a mile of river adjacent to Oregon State Hwy. 224, from a point west of the U.S. Forest Service’s Lazy Bend Campground to a half mile above the river’s bend westward at Big Cliff. The area is most recognizable by the green Pratt truss bridge at Memaloose Road, now closed to vehicular traffic, which sits atop the river and connects walkers to the day-use area on the river’s south side.
From Estacada, Oregon: Follow Oregon Highway 224 East for 9.5 miles to the Memaloose Bridge.