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<br />Razorback Sucker--The Service is proposing 15 reaches of the Colorado River system as
<br />critical habitat for the razorback sucker (Table 1). These reaches total 1,824 miles as
<br />measured along the center line of each reach (Table 3). This represents approximately 52
<br />percent of the historical habitat for this species. In the Upper Basin, critical habitat is being
<br />proposed in the Green, Yampa, Duchesne, Colorado, White, Gunnison, and San Juan rivers.
<br />Portions of the Colorado, Gila, Salt, and Verde rivers are being proposed in the Lower Basin.
<br />These reaches flow through a variety of landownerships, both public, tribal, and private. The
<br />approximate number of proposed shoreline miles of critical habitat by landownership for the
<br />razorback sucker is presented in Table 4.
<br />
<br />Critical habitat areas proposed for the razorback sucker in each State are as follows:
<br />
<br />RZl: Colorado, Moffat County. The Yampa River and its 100-year floodplain from the
<br />mouth of Cross Mountain Canyon in T.6N., R.98W., section 23 (6th Principal Meridian) to
<br />the confluence with the Green River in T,7N., R.103W., section 28 (6th Principal Meridian).
<br />
<br />RZ2: Utah, Uintah County, and Colorado, Moffat County. The Green River and its 1oo-year
<br />floodplain from the confluence with the Yampa River in T.7N., R.103W., section 28 (6th
<br />Principal Meridian) to Sand Wash at river mile 96 in T.11S., R.18E., section 20 (6th Principal
<br />Meridian).
<br />
<br />RZ3: Utah, Uintah, Carbon, Grand, Emery, Wayne, and San Juan Counties. The Green River
<br />and its toO-year floodplain from Sand Wash at river mile 96 at T.llS., R.18E., section 20
<br />(6th Principal Meridian) to the confluence with the Colorado River in T.30S., R.19E., section
<br />7 (6th Principal Meridian).
<br />
<br />RZ4: Utah, Uintah County. The White River and its 1oo-year floodplain from the boundary
<br />of the Uintah and Ouray Indian Reservation at river mile 18 in T.9S., R.22E., section 21 (Salt
<br />Lake Meridian) to the confluence with the Green River in T.9S., R.20E., section 4 (Salt Lake
<br />Meridian).
<br />
<br />RZ5: Utah, Uintah County. The Duchesne River and its 100-year floodplain from river mile
<br />2.5 in T.4S., R.3E., section 30 (Salt Lake Meridian) to the confluence with the Green River in
<br />T.5S., R.3E., section 5 (Uintah Meridian).
<br />
<br />RZ6: Colorado, Delta and Mesa Counties, The Gunnison River and its lOO-year floodplain
<br />from the confluence with the Uncompahgre River in T.15S., R.96W., section 11 (6th Principal
<br />Meridian) to Redlands Diversion Dam in T.1S., R.1 W., section 27 (Ute Meridian).
<br />
<br />RZ7: Colorado, Mesa and Garfield Counties. The Colorado River and its 100-year floodplain
<br />from Colorado River Bridge at exit 90 north off Interstate 70 (river mile 238 ) in T.6S.,
<br />R.93W., section 16 (6th Principal Meridian) to Westwater Canyon (river mile 125) in T.20S.,
<br />R.25E., section 12 (Salt Lake Meridian) including the Gunnison River and its 1oo-year
<br />
<br />6
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