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out of the channel in the vicinity of a golf course where it reaches widths of over 400 feet. Gore Creek is split into Upper Gore Creek and Lower Gore Creek near the Vail eastern corporate limits. Red Sandstone Creek, Middle Creek, Spraddle Creek, Booth Creek, Pitkin Creek, and Bighorn Creek all drain southerly from the northern Gore Range to Gore Creek. These streams are characterized by well-defined channels, shallow depths, and very steep slopes. Streambeds consist basically of cobblestones with some larger rocks. The overbank areas are covered with heavy brush and small trees. Flood plains on these creeks are usually confined to the channels due to the steep slopes, but they can break out at culverts and constrictions in the channels. Some residential development can be affected by the flooding of these streams. West Mill Creek, East Mill Creek, and Black Gore Creek drain northerly from the southern Gore Range to Gore Creek. These creeks are also well defined, with very steep slopes and shallow depths. West Mill Creek and East Mill Creek flow directly through the Vail ski-lift areas and into the town to reach Gore Creek. The vegetation in the upper segments consists mostly of short native grasses on the ski slopes. The lower segments flow through town, and there are some buildings and small shops in the flood plain. Black Gore Creek is located at the eastern corporate limits of Vail. Its lower portion is characterized by heavy brush, both in the channel and on the overbanks. Its upper area h~s more of a cobblestone streambed with less vegetation in the channel. There is no development in the flood plain. The underlying soils in the Gore Creek valley are alluvial soils containing a high percentage of sand, gravel, and cobbles. The ground-water table is usually found at depths near or somewhat above the mean seasonal stage level for Gore Creek and slopes upward toward the valley walls. The permeability of the soils is very high and, except for a few very localized spots mainly near or within the golf course, the potential infiltration is not influenced by a high ground-water table (Reference 4). 2.3 Principal Flood Problems Flooding on the streams in the Town of Vail usually occurs from May through August. Floods may be caused by rainfall or snowmelt, eithel alone or in combination. There are few definitive data regarding past flooding available for the Town of Vail since its development in the early 1960s. However, on June 25, 1978, there was SOme minor damage at the Racquet Club near Bighorn Creek due to mud and debris flow (Figures 2, 3, and 4, Reference 1). 2.4 Flood Protection Measures The Town Council adqpted a flood plain ordinance in 1978. 4