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<br />In region 2, the two streamflow-gaging stations used in calibration and
<br />verification were Hubberson Gulch near Hayden (09244464) and Stokes Gulch near
<br />Hayden (09244470). Watering Trough Gulch near Hayden (09244460) was not cali-
<br />brated but was used to evaluate the transferability of the model parameters
<br />within the region. One precipitation station was used in this region and the
<br />data were obtained from the National Weather Service station at Hayden.
<br />
<br />Region 3
<br />
<br />Region 3 is south and west of Craig (fig. 1) and includes a series of
<br />roughly parallel streams that drain from the Danforth Hills--Taylor, Wilson,
<br />and Jubb Creeks and Collum and Morgan Gulches. Drainage basins in this region
<br />typically have drainage divides in the Danforth Hills, where elevations are
<br />about 8,000 ft, although some peaks are as high as 8,800 ft. Streams in this
<br />region drain from these higher elevations into the Axial basin, where the
<br />elevation is about 6,500 ft in the central area. The Axial. basin is very dry;
<br />the precipitation map (U.S. Weather Bureau, 1.985) indicates that total annual
<br />precipitation is 1.2 in. In this region, drainage-basin divides have eleva-
<br />tions comparable to drainage-basin divides in region 1; snowpacksalso are
<br />comparable at similar elevations. Large areas of these drainage basins are
<br />in intermediate valleys and have elevations of about 7,000 ft, which accum-
<br />ulate much less snow than areas at higher elevations. Lower elevations in
<br />region 3 are drier than those in region l, and a greater change of precipi-
<br />tation with elevation occurs in region 3. An early runoff peak may occur in
<br />February or March from melting snow. in the lower elevations, and secondary
<br />runoff peaks from melting snow in the higher elevations may occur in May
<br />or June. Lower elevations have complexities in water balances caused by
<br />increased evapotranspiration and storage of water in alluvial aquifers.
<br />
<br />In region 3, the drainage basins were monitored by streamflow-gaging
<br />stations (table 1): Taylor Creek at mouth near Axial (092505l0), Wilson
<br />Creek near Axial (09250600), and Jubb Creek near Axial (092506l0). The three
<br />streams are roughly parallel, and the drainage basins are contiguous (fig. 1).
<br />Considerably more streamflow occurs throughout the year in the Wilson Creek
<br />drainage basin than in most of the other drainage basins in the region, partly
<br />because of its larger drainage area, much of which is above 8,000 ft. The
<br />larger total area with vegetation primarily of aspen in the Wilson Creek
<br />drainage basin (table 1), compared to the other drainage basins in this
<br />region, indicates a wetter environment.
<br />
<br />Wilson Creek near Axial (09250600) and Jubb Creek near Axial (09250610)
<br />were the two streamflow-gaging stations used for calibration and verification
<br />in region 3. Taylor Creek at mouth near Axial (09250510) was used to evaluate
<br />the transferability of the model parameters within the region. Only one
<br />precipitation station was used to provide additional data about the three
<br />drainage basins in this region. This station was located near the mouth of
<br />Wilson Creek at 6,520 ft. Additional precipitation data were available from
<br />the divide of Wilson Creek at 8,000 ft, but the data were not used directly
<br />in the model.
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