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Criterion f;o. 7 -- Historic Lands and Sites Analysis: k Class IlI survey for cultural resources has Leen conducted on apprexir,ately thirty acres of tfie proposed lease area. t;o cultural values mere located (~:ranzush • 1977, Scott 1976). In addition, no sites eligibl_ for or included in the tational Register of !'istoric °lares irdve been ider~tified on lands within cr adjacent to the prc;,osed lease area. The environmental censtrair.ts or the area and sparse nature of arcneolo,ical sites ~rithin the Borth rorf; Valley vrould sucgest similar findings throuhout the proposed lease area. A Class III cultural resource survey • vrill be required on all potential irpact areas should coal development tape place. Criterion t;o. 8 -- Ratural Areas Analysis: The criterion is not applicable because no natural awes or Rational P;atural LandrzrRS are present en the _ federal lands. Special note: For Criteria i;os. 9 to 16, Cclorado State Cffice Briefing tJo. 46 (1-19-79) eras used to er.pand the meaning of the original • criteria. Criterion No. 9 -- Federally Listed Endangered Species Analysis: Lo legally designated critical habitat for federally listed endangered species is located on these federal lands. However, during the winter a bzld eagle does use . the riparian vegetation along the southern portion of these federal lands adjacent-to the i;orth Ferk giver. The intake ventilation shaft proposed by ':;esters Slope Carbon in their short-term lease application lies vrithin tl•,e riparian habitat. Approximately 1.5 acres of perr,~anent surface disturbance r.~ould result to the area fro:.: the constructior, of the vent shaft. The criterion, ho;rever, reeuires that the habitat be of essential value as deten~~ined by u"LFi znd _ the U. S. Fish and i:ildlife Service (USF;dS;. Consultatiora as required by Section 7 of the Endangered Species Act have been scheduled. dt is, therefore, possible but not certain that this criterion applies. If, as a result of the consultation, the criterion is found to apply, the USF:,S r+ill also be requested to consult with BL.•. on the effects of the •