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• Sandhill cranes have been reported during migration from nearby <br />areas of the Roan Plateau. The species should therefore be <br />considered a potential visitoc. <br />The Colorado River cutthroat trout, listed by the State of Colo- <br />rado as a threatened subspecies, is known to inhabit the upper <br />reaches of East Middle Fork, a tributary of Parachute Creek. <br />this area of occurrence is off the Dow West permit area. Other <br />threatened or endangered species have not been reported in the <br />vicinity of the proposed project in historic time. These un- <br />reported species include the humpback sucker, bonytail chub, <br />humpback chub and squawfish. None of these species has been <br />collected in the Parachute Creek drainage, or the Colorado River <br />in the vicinity of Grand Valley so far as Colony can determine <br />(also see Burkhard and Lytle 1978). These species commonly <br />inhabit large, turbulent flowing rivers with annual floods. <br />Suitable habitat for these species does not exist in the Parachute <br />. Creek drainage. Suitable habitat may no longer exist in sections <br />of the Colorado River near Grand Valley even though early historic <br />distribution of these species in Colorado probably included the <br />Colorado River in this vicinity. <br />IMPACTS--TERRESTRIAL <br />It should be noted that disturbed acreage on the Dow West permit <br />area, due to the access road, plant site, mine portal and disposal <br />site, will be limited to about 1,400 acres out of the total, <br />approximately 6,000, permit area acres. Also, at no one time <br />will all of the acres be removed from use by wildlife. The dis- <br />turbed acreage at the two Grand Valley facilities cover about <br />80 acres, but are not considered of value by big game. <br />In 1974, Colony prepared a report on the impacts anticipated <br />for the proposed project, based on baseline studies conducted <br />L_J <br />H-12 <br />