Born-Digital or AnalogAnalogTranscriptMarble canyon Drilling in Marble Canyon to test site suitable for a dam to control the Colorado River. Desert Magazine v-14 #7 P-4 May, 1951 Bridge and Marble canyon dams* National Parks Magazine v-39 #219 D 1965 p.1-4 (inserted in center) Origin of barbed tributaries in canyon. Plateau v.45 #3 Winter 1973 p.128- 132CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng