Judge C. R. Magney State Park is a state park in the U.S. state of Minnesota, on the North Shore of Lake Superior. It was named for Clarence R. Magney, a former mayor of Duluth and justice of the Minnesota Supreme Court, who was instrumental in getting 11 state parks and scenic waysides established along the North Shore. The park is best known for the Devil's Kettle, an unusual waterfall and rock formation in which half of the Brule River disappears into a pothole. Geography Judge C. R. Magney State Park is located on scenic Minnesota State Highway 61, from the Canada–United States border. The last of the Brule River flow through the park, dropping and producing several waterfalls and cascades. A tributary of the Brule, Gauthier Creek, flows in from the west. Mons Creek, an intermittent stream on the park's northeast border, drains a small marsh. This stretch of the Brule River has three named waterfalls. At from the lakeshore, Lower Falls drops over two steps just before the mouth of Gauthier Creek. A short distance upstream are the Upper Falls, dropping , and Devil's Kettle Falls. From the Devil's Kettle to Upper Falls the river flows through a rocky gorge, as does the last of Gauthier Creek. Developed areas and trail access are confined to the lower third of the park. The northern section is rugged and difficult to access, with open ridges stepping away from the river valley. These extremes produce an elevation change of about within the park. The state park is entirely within Grand Portage State Forest, although most of the land directly adjacent to the park is privately owned inholdings. The park has a continental climate of extreme seasonal variation, moderated by Lake Superior, which keeps the shore areas warmer in winter and cooler in summer than the inland part of the region. Thus winters tend to be mild and snowy. Natural history Geology The park is underlain by alternating layers of basalt and rhyolite, which were erupted from the Midcontinent Rift System 1.1 billion years ago when the middle of the North American Plate began to crack. These layers bear intrusions of gabbro and diabase in the north and ferrodiorite in the south near the lakeshore. The rift itself formed a great basin, which gradually filled with sedimentary rock. The volcanic layers to either side became tilted; the basalt and rhyolite layers underneath