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-I- L ?ilc i71 uw rua I%.wj %,diiIi 1, ii.3c.7 a UeI Il':L LVI UCif 611uL uVCJ 11V IL, UI?l11iU1L 11511 <br />migration except during periods of extremely low flow when most of the river <br />is diverted. The next diversion of consequence to the river fishery is at <br />Moab, Utah, the downstream terminus of the study area. Figure 2 shows <br />locations of diversions in the study area. <br />The entire study area can be divided into two basic types of terrain, <br />canyon and agricultural bottom land. With few exceptions, access is limited <br />in the canyons and excellent in the agriculture areas. <br />METHODS <br />c --.-.? <br />JUMP 1 i iig Brea <br />For data collecting purposes and accessibility, the Gunnison River was <br />divided into.five sections, designated A, B, C, D, and E. (Fig. 3) <br />Section A commences at Delta, Colorado and extends 14 miles downstream <br />to the Escalante crossing. Section A is in a wide valley dominated by <br />agriculture and industry. The next three sections (B, C, D) are in a canyon <br />type environment with occasional wide areas. These three sections include <br />approximately 26 miles of river and from a biological standpoint are quite <br />uniform in fish habitat. They were divided primarily on the basis of <br />accessibility. Section D terminates at the Whitewater bridge crossing. <br />Section E terminates at the confluence of the Gunnison and Colorado Rivers <br />at Grand Junction, Colorado. <br />The Colorado River was divided into two basic sections. From DeBeque <br />to Loma, Colorado is primarily agricultural land and the access is excellent. <br />From Loma to Moab, Utah, the terrain is mostly canyon. Access to this area <br />is limited except for the last 36 miles which is excellent. No specific <br />stations were selected on the Colorado River except in the areas containing <br />backwater. (8)