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' 2.0 STUDY AREA 2.1 Location r The study reach of the Yampa River includes the entire reach that was designated as "critical habitat" for the endangered fish species. Although portions of the Yampa watershed are located in other Colorado counties, and even in Wyoming, the entire study reach lies in Moffat County in northwestern Colorado (see Figure 2). ' 2.2 Stud The focus of this study on the Yampa River is from the downstream limit of the FEMA detailed 1 study for Craig, Colorado (57 miles upstream of the Deerlodge Park gage) downstream to the upstream limit of Dinosaur National Monument (1 mile upstream of the Deerlodge Park gage). At the upstream limit of the study (Craig) the stream elevation is approximately 6150 feet and at the downstream limit of the study the stream elevation is approximately 5600 feet. The study reach contains three USGS gages. One gage is located at the upstream limit of the study, one at the downstream limit, and one is located approximately in the middle of the reach. Information for those three gages, as well as for two gages on tributary streams, is listed in Table 1. t TABLE 1 GAGE DATA YAMPA RIVER (CRAIG TO DINOSAUR NATIONAL MONUMENT) GAGE ID GAGE NAME RECORD YRS DRAINAGE AREA LATITUDE, LONGITUDE (SQ; MI) 09247600 YAMPA RIVER 10 1750 402815, 1073649 BELOW CRAIG 09251000 YAMPA RIVER AT 78 3410 403010, 1080145 MAYBELL 09260050 YAMPA RIVER AT 10 7660 402708, 1083128 DEERLODGE PARK 09249750 WILLIAMS FORK 10 419 402614, 1073850 RIVER 09260000 LITTLE SNAKE 74 3730 403250, 1082525 RIVER (LILLY)