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1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />I <br />I <br />1 <br />1 <br />1 <br />i <br />1 <br />1 <br />1 <br />1 <br />1 <br />2.0 STUDY AREA <br />2.1 Location <br />The study reach of the Yampa River includes the entire reach that was designated as "critical <br />habitat" for the endangered fish species. Although portions of the Yampa watershed are located <br />in other Colorado counties, and even in Wyoming, the entire study reach lies in Moffat County <br />in northwestern Colorado (see Figure 2). <br />2.2 Study Reach <br />The focus of this study on the Yampa River is from the downstream limit of the FEMA detailed <br />study for Craig, Colorado (57 miles upstream of the Deerlodge Park gage) downstream to the <br />upstream limit of Dinosaur National Monument (1 mile upstream of the Deerlodge Park gage). <br />At the upstream limit of the study (Craig) the stream elevation is approximately 6150 feet and <br />at the downstream limit of the study the stream elevation is approximately 5600 feet. The study <br />reach contains three USGS gages. One gage is located at the upstream limit of the study, one <br />at the downstream limit, and one is located approximately in the middle of the reach. <br />Information for those three gages, as well as for two gages on tributary streams, is listed in Table <br />L <br />TABLE 1 <br />GAGE DATA <br />09247600 <br />YAMPA RIVER <br />10 <br />1750 <br />402815, 1073649 <br />BELOW CRAIG <br />09251000 <br />YAMPA RIVER AT <br />78 <br />3410 <br />403010, 1080145 <br />MAYBELL <br />09260050 <br />YAMPA RIVER AT <br />10 <br />7660 <br />402708, 1083128 <br />DEERLODGE <br />PARK <br />09249750 <br />WILLIAMS FORK <br />10 <br />419 <br />402614, 1073850 <br />RIVER <br />09260000 <br />LITTLE SNAKE <br />74 <br />3730 <br />403250, 1082525 <br />RIVER (LILLY) <br />I <br />