Butte provides a variety of climbs including cracks, dihedrals, slab, vertical, and overhanging face routes. References Sources . . . . . . . . . External links Rocky Butte Preservation Society Rocky Butte Scenic Drive Historic District at PortlandMaps NRHP Registration Form, 1991 Buttes of Oregon Cascade Volcanoes Cinder cones of the United States Geography of Portland, Oregon Landforms of Multnomah County, Oregon Madison South, Portland, Oregon Mountains of Oregon Parks in Portland, Oregon Subduction volcanoes Volcanoes of Multnomah County, Oregon Volcanoes of Oregon