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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I- <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />5.0 Available Mapping <br /> <br />Previously published floodplain information reports <br />prepared by the Sacramento District Army Corps of <br />Engineers for Steamboat Springs (February 1976) and <br />Craig (November 1977) include detailed mapping. <br />Topographic maps with a contour interval of 2.0 feet are <br />available for approximately 4.5 miles in the vicinity <br />of Steamboat Springs and about 2.4 miles in the vicinity <br />of Craig. <br /> <br />, <br /> <br />The following U.S.G.S. quadrangle maps, scale 1 inch <br />equals 2,000 feet, are available for the entire study <br />reach: ," <br /> <br />Blacktail Mountain <br />Steamboat Springs <br />Rocky Creek <br />Mad Creek <br />Cow Creek <br />Milner <br />Mt . Harris <br />Rocky Spring Gulch <br />Hayden <br />Ralph White Lake <br />Craig <br />Castor Gulch <br />Round Bottom <br />,Horse Gulch <br />Juniper Hot Springs <br /> <br />These topographic maps for the areas upstream of <br />Craig have 40 foot contour intervals with supplemental <br />contours at 20 feet in the river valley. The areas <br />downstream of Craig are shown with 20 foot contour <br />intervals and 10 foot supplemental contours in the <br />valley. <br /> <br />The dam failure inundation maps in this report are <br />shown with U.S.G.S. maps as a base. In addition, the <br />flood boundary in the vicinity of Steamboat Springs has <br />also been shown on a 2.0 foot contour map. <br /> <br />[1 <br />