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These classifications are based on the USGS field survey during 1966. Map M43 <br />also depicts [he headwater origins of the respective receiving waters. <br />No drainages south of the TSN (Latitude) line or the divide between the Yampa <br />River and Williams Fork River systems were investigated since all the surface <br />mining disturbance proposed for Trapper Mine will be confined to the drainage <br />networks north of that ridgeline (Map M44). Portions of drainages that had pre- <br />viously been disturbed by mining activities sanctioned by approved State of Colo- <br />rado and Federal 30 CFR 211 mining permits were also not examined. These drain- <br />ages were historically associated with ephemeral flows as [here were no persist- <br />ant streams within the affected areas of present Trapper Mine pits (Ecology Con- <br />sultants, Inc., 1972). <br />All aquatic environments known within the proposed Trapper Mine mine plan area <br />are limited to those that could occur with intermittent upland drainages. The <br />north face of the Williams Fork Mountains is an approximate 16 percent slope <br />. across the two miles proposed to be mined. That face includes 25-30 small drain- <br />age fingers that cumulate into two minor feeder streams reaching the Yampa <br />River. <br />All len[ic waters within this area are limited to small livestock watering ponds, <br />marshes less than 30 feet in width and ground water pools less than six inches in <br />depth and 4-5 square feet surface area. All lentic habitats are limited to lim- <br />ne[ic and littoral zones. <br />All lotic systems are Limited to very shallow streams and springs with alternat- <br />ing trickles and depositional zones. All the drainages within the area flow less <br />than 0.10 CFS (44.9 GPM) except when runoff during major thunderstorms or rapid <br />snowmel[ contributes to the discharge during the spring. These systems originate <br />from ground water seeps or tiny spring(s) interflow that ooze out of the sidewall <br />of these small incised drainage channels. These incised channels range from two <br />to thirty feet with small rivulets ranging from 4 inches to broad sluggish ripar- <br />ian zones (20-25 Fee[) in width. The water Levels are normally below six inches <br /> <br />J-2 <br />