R Railroads 96, 98 Rainbow Bridge National Monument 115 Range Canyon 58 Red Lake Canyon 80 Rico Formation 76, 101 Rincons 86, 90 Anderson Bottom 93 Indian Creek 93, 101 Jackson Hole 90, 100 River trips 85, 86 _Canyon King_ 98 early float 87, 88, 96 guidebooks 4, 88 Powell expeditions 4, 87 rapids 108 stern-wheeler 98 Rivers, Colorado _96_, 114 Grand (Colorado) 17, 96 Green _87_ cutoffs 86, 87 _See also_ Rincons. meanders 85, _86_ Rock column 20, 31 Rock folds, anticlines 98 Cane Creek anticline 31, 50, 53, 100 Kings Bottom syncline 50, 98 Meander anticline 79, 108 Moab anticline 50 oil and gas 53 potash salts 53 San Rafael Swell 116 Shafer dome 31, 49, 53, 101 synclines 43, 49, 100 Upheaval Dome 43 Rock fractures, faults 48, 63, 79, 104 joints 63, 79 origin 79 Rock inscriptions 12 Rock layers, dip 54, 85, 90, 97 Rock paintings 9