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Drainage bottoms in the valleys are generally vegetation lined. <br />' ~, However, in some places they are deeply incised V shaped gullies. <br />All channels appear to be downwearing by headcutting. <br />3.3.2 Stream Classifications <br />• <br />Drainage divides and stream orders are shown in Exhibit IV. Both <br />Flume Culch and Pyeatt Gulch have branches which are third order <br />streams when they leave [he mine plan area, Johnson, No Name, <br />Coyote and Buzzard Gulches all contain second order streams on [he <br />site. Below [he mine site, Pyeatt Gulch joins Johnson Gulch, how- <br />ever, streams maintain these orders until their confluence with <br />the Yampa River. <br />3.3.3 Water Availabilit <br />~~ <br />Annual water yield in the Craig area from 1914 to 1965 averaged <br />less than one inch (Woodward-Clyde 1977). Water yield from [he <br />mine plan area measured from March to November, 1975, was between <br />16 and 30 ac.f[./mil, or .3" to .6" runoff (Woodward-Clyde <br />1977). All drainages are ephemeral in nature with [he exception <br />of some small contact springs or seeps which contribute <br />approximately 2 gpm when they are flowing, Thus timing of water <br />yield is dependent upon spring thaw and distribution of <br />-14- <br /> <br />