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for the unnamed streams are as follows: (1) across Red Mountain Drive, Midland Avenue, and West 9th Street, (2) along 13th Street, (3) across Midland Avenue south of 13th Street; (4) across Lincolnwood Drive and Hyland Park Drive (north), (5) toward 19th Street, (6) down 21st Street and Blake and Bennett Avenues; (7) to Bennett Avenue (south and across Palmer Avenue); and (8) across palmer Avenue to Blake Avenue (south) and over 21st Street. These nine areas were studied by approximate methods because they have no defined channel and because, except for the first unnamed stream, they all have drainage areas of less than 1 square mile. The areas studied by detailed methods were selected with priority given to all known flood hazard areas and areas of projected develop- ment or proposed construction through 1989. Approximate analyses were used to study those areas having a low development potential or minimal flood hazards. The scope and methods of study were proposed to, and agreed upon by, FEMA and the City of Glenwood Springs. 2.2 Community Description The City of Glenwood Springs is located in southeast Garfield County, in northwest Colorado. It is approximately 8 miles southwest of Shoshone, 3 miles north of cardiff, and 9 miles southeast of New Castle. Grand Junction, the nearest large city, is approximately 88 miles west of Glenwood Springs. The City of Glenwood Springs had a 1980 population of 4,637 (Reference 3). The City Planning Director has estimated an additional population of 2,295 outside the city limits, but within the city's planning area, for a total 1980 population of 6,932 for Glenwood Springs and vicinity. The economy of Glenwood Springs depends primarily on tourism. However, increased interest in oil shale development and coal mining are also noted as sources that stimulate its economy. The Colorado River originates at the Continental Divide near Granby, Colorado, and flows west through Glenwood canyon, some 1,000 feet of sheer cliffs, before reaching Glenwood Springs. There, the river flows through the northern part of the city, where it is met by its principal tributary, the Roaring Fork River (Reference 2). The headwaters of the Roaring Fork River originate approximately 1,200 feet above Aspen, Colorado. The river flows approximately 50 miles in a northwesterly direction before reaching Glenwood Springs. The Roaring Fork River joins the Colorado River in the north-central portion of the city at an elevation of approximately 5,700 feet. The Roaring Fork River drainage basin is approximately 1,460 square miles (Reference 2). 4