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Lorencito Canvon Notice of Intent Amendment <br />Additional Comment: <br />Our consultant Arcadis U.S., Inc. (Arcadis) senior staff archaeologist, Dulaney Barclay conducted a <br />formal records search of the entire project area through the Colorado Office of Archaeology and <br />Historic Preservation (OAHP) on September 25, 2020. The records search wasperformed to locate <br />previously recorded cultural resources and investigations at or near the sixteen proposed core hole <br />locations. <br />The Lorencito Canyon area was surveyed in the late 1990s (1996-1997) by Metcalf Archaeological <br />Consultants and again in 2001 by Greystone Environmental Consultants. As a result of these surveys <br />roughly 250 cultural resources were documented. A majority of the cultural resources documented <br />are prehistoric in age with some notable historic resources recorded (Weston to Tercio Wagon Road, <br />Colorado and Wyoming Railroad Grade). Of the roughly 250 resources documented, approximately <br />half have been officially evaluated for the National Register of Historic Places (NRHP) by the <br />OAHP. A majority have been determined tobe not eligible for listing in the NRHP. Several require <br />additional information before a determination can be made. Only a few have been determined to be <br />eligible for listing in the NRHP including a prehistoric quarry site, Native American ceremonial <br />sites, and a segment of the Colorado and Wyoming Railroad Grade. Roughly the other half of the <br />sites in the Lorencito project area has a "field recommendation" which is the opinion of the investigator <br />on NRHP eligibility. These resources do not currently have an official determination of eligibility <br />from theOAHP. All 16 proposed core drill hole locations are identified to be outside of the areas of <br />potential concern and therefore no impacts to cultural sites will not occur. <br />9. Have reclamation costs been included with this Notice to assist in determining theamount of <br />Performance Bond Required. <br />Table 4 Estimated Direct Cost Bonding Requirements shows the calculation of the Direct Cost <br />for the Performance Bond. The direct reclamation cost for the entire project is estimated to be about <br />$45,000. Table 5 Estimated Total Bonding Requirements shows the calculation of the <br />Performance Bond including mobilization, job superintendent, profit, engineering, and management. <br />The total reclamation cost for the entire project is estimated to be about $78,000. <br />The following assumptions were used for the bonding requirements below: Reclamation of <br />each mud pit is $200.00 <br />Regrading each pad is $288.00 <br />Reseeding each pad is $22.00 <br />Regrading New Roads is $0.16 per foot of linear disturbanceRe seeding <br />New Roads is $0.09 per foot of linear disturbance <br />Sealing and Plugging Holes is $3.62 per foot of hole depth <br />Mobilization to each location is $500.00 <br />14 <br />2020 Exploration Program 2/11/2021 <br />