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Revision <br />February 1982 <br />downstream (less than one mile) from the Hawk's Nest Mine. Comparison of <br />vegetation maps of each site confirm visual observations of the similarity <br />of vegetation in the two areas. <br />On-site surveys of current vegetation at the Hawk's Nest Mine showed <br />no endangered or threatened plant species present. See Table 2.04.10.6 for <br />the current species listed as endangered or threatened in Colorado (Federal <br />Register 1980). <br />Reference Areas <br />Rather than determining revegetation success from reference area pre- <br />mining and postmining vegetation data, an approval was obtained from CMLRD <br />to develop a revegetation success "standard" from available literature to <br />access postmining revegetation success (4.15.7(2)). <br /> <br />• <br />2.04-48~ <br />