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<br />The follOlJing miaeral resource rJ.aps Here published during the <br /> <br />year: <br /> <br />Colorado <br />Geologic Index Map <br /> <br />~ <br /> <br />GeoloGic Index Map <br />Kansas <br />. Construction Report of the Cedar Bluff Area published <br />as Circular 15 <br />l'1ontana <br />Argenta luning District - Preliminary Geolo['ic Hap. <br />Geologic Hap of the Canyon Ferry Quadrangle <br />Nebraska <br />-----c~struction }futerial Map <br />Geologic Index }~p <br />Prelininary Map showing Sand and Gravel Deposits <br />North Dakota <br />Con-s~ction Matcrials and Nonnetallic Mineral Resources <br />Geologic Index Map <br />Geology Hap of Zahl No. 3 Quadrangle <br />South Dakota <br />Construction Materials and Nonmetallic }lineral Resources <br />Map showing Riprap Sources in north'Jostern South Dakota <br />and western North Dakota <br />1Vy:oming <br />Geol03ic Index Map <br />Motallic Mineral Deposits <br /> <br />Haps published in the Oil and Gas Investigation series Here: <br /> <br />Hyo~22& <br />Geoloe;ic Map of the Gre~rbull-Basi. n Area <br />Geology of the Horland-Hyattville Area - ",- <br />Geolocic Mapping of the Big Horn Basin <br />Structure Contour Map of tho Big !Iorn Basin <br /> <br />On March 10 and 11, 194C a confercnce was held in Denver on <br />geologic and mineral investigations in tho ~fissouri TIiver Basin. <br />This conferonce was attended by representatives of the Geological <br />Survey, Bureau of :t-ti.nes, Bureau of Reclanation, Bureau of Land <br />Hanager'lcnt, and Burcau of Indian Affairs. The fol1mJinc points <br />Here discussed: <br /> <br />;., <br /> <br />1. Descri~~ion of programs of geological and mineral invos- <br />tigations of the various Interior agencies in tho Missouri <br />Rivor Basin. <br />2. Discussion of proGrar.J.s; suggestions as to hou the work <br />of each agency can be improved to contribute r.J.ost to the <br />development of the ~assouri River Basin. <br />3. Preparation of a six-year program. <br /> <br />" <br /> <br />72 <br />