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<br />19 <br /> <br />Critical Habitat <br /> <br />Critical habitat has been designated within the bony tail's historical range in <br />the following sections of the Upper Basin (59 F.R. 13374). <br /> <br />Colorado Moffat Countv. The Yampa River from the boundary of Dinosaur <br />National Monument in T. 6 N.. R. 99 W., section 27 (6th Principal <br />Meridian) to the confluence with the Green River in T. 7 N., R. 103 W.. <br />section 28 (6th Principal Meridian). <br /> <br />Utah. Uintah Countv: and Colorado. Moffat Countv. The Green River from <br />the confluence with the Yampa River in T. 7 N., R. 103 W., section 28 <br />(6th Principal Meridian) to the boundary of Dinosaur National Monument <br />in T. 6 N.. R. 24 E.. section 30 (Salt Lake Meridian). <br /> <br />Utah Uintah and Grand Counties. The Green River (Desolation and Gray <br />Canyons) from Sumner's Amphitheater in T. 12 S., R. 18 E.. section 5 <br />(Salt Lake Meridian) to Swasey's Rapid (river mile 12) in T. 20 S., <br />R. 16 E.. section 3 (Salt Lake Meridian). <br /> <br />Utah. Grand Countv: and Colorado Mesa County. The Colorado River from <br />Black Rocks (river mile 137) in T. 10 S., R. 104 W.. section 25 <br />(6th Pri nci pa 1 Meri di an) to Fi sh Ford in T. 21 S., R. 24 L, secti on 35 <br />(Salt Lake Meridian). <br /> <br />Utah. Garfield and San Juan Counties. The Colorado River from Brown <br />Betty Rapid in T. 30 S., R. 18 E., section 34 (Salt Lake Meridian) to <br />Imperial Canyon in T. 31 S.. R. 17 E., section 28 (Salt Lake Meridian). <br /> <br />FLOW RECOMMENDATIONS FOR THE 15-MILE REACH <br /> <br />The 15-mile reach has experienced major agricultural water depletions for <br />many years. During late summer and early fall, this reach can be severely <br />dewatered. Although it experiences major water depletions. the 15-mile reach <br />is viewed as critical to the recovery of Colorado River populations of <br />Colorado squawfish and razorback sucker. The development of recommended flows <br />in the 15-mile reach, therefore, was identified as important to achieving <br />recovery of these species. <br /> <br />The Service first developed flow recommendations in 1989 and 1991. The summer <br />flow recommendations (Kaeding and Osmundson 1989) were developed using the <br />Instream Flow Incremental Methodology. The spring and winter flow <br />recommendations (Osmundson and Kaeding 1991) were based on other <br />