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respectively, of the project area. The Foidel Creek Mine is a large ongoing underground coal <br />mine immediately to the southeast of the project area. <br />Cultural or Archaeological Resources - Metcalf Archaeological Consultants, Inc. (MAC) <br />has conducted cultural/archaeological resource surveys of the project area outside of the <br />Yoast Mine permit boundary. The cultural resource surveys were completed during 2007, <br />2008 and 2010. The survey area for site CCU025 is included in the report titled "2008 Core <br />Hole Project and Shaft Location " (1211712007): survey area for sites CCU064, 065 and 070 <br />in report "Peabody Energy Twentymile Coal Company Sage Creek Subsidence Project: A <br />Class III Cultural Resources Inventory, Routt County, Colorado " (February 27, 2009): and <br />site CCU069 in report "Peabody Energy, Twentymile Coal Company: Sage Creek Drill Site <br />(CCU069), Class III Cultural Resources Inventory, Routt County, Colorado" (1211612010). <br />The cultural/archeological resource survey reports are provided in Appendix C, Cultural <br />Resources Investigations. No archaeological sites or isolated fords were indentified. <br />Previous surveys have identified several isolated fords and historic/prehistoric sites in the <br />general region. MAC findings were "no effect on historic properties" and recommends no <br />additional, cultural resources work for these sites. <br />The areas inside the Yoast permit boundary (sites CCU071, 072, 073 and 074) were <br />surveyed prior to surface disturbance - i.e. removal of topsoil for construction of facilities <br />and mining. The cultural survey reports are contained in the Yoast permit #C-94-084. <br />5) Describe Exploration Activities <br />The primary methods of exploration and geologic and chemical data collection proposed in <br />this application include exploration drilling, geophysical logging, and sampling, followed by <br />reclamation of all exploration disturbances, as more specifically described in the following <br />sections. <br />The 2011 exploration program involves eight (8) exploration drillholes to further delineate <br />and characterize geologic conditions, coal seam occurrence and quality, and overburden <br />physical and chemical characteristics; and one (1) additional drillhole (CCU069) to verify the <br />presence or absence of water in old underground workings to the north of RCR 27A. The <br />drillhole (CCU069) is not expected to be converted monitor well. <br />Each of the proposed 2011 drill-sites are shown on Map 1, 2011 Surface Ownership, and <br />listed in Table 1, 2011 Drillhole Location and Ownership. <br />Scheduled Timing - PSCM plans to initiate exploration activities immediately upon receipt <br />of required approvals, and continue as weather and ground conditions allow. It is anticipated <br />that drilling activities will be completed by the end of 2011, although weather or other <br />unanticipated delays may result in extension of the activities into 2012. The drilling <br />operations will be scheduled on a 12-hour per day basis (approximately 7:00am to 7:00pm); <br />however, PSCM requests permission to conduct operations on a 24-hour per day basis if <br />unforeseen delays cause the project to fall behind schedule. In the event of winter drilling <br />activities, PSCM will coordinate with the CDOW to keep specific gates locked to preclude <br />public access, and to avoid areas of critical winter range. <br />PSCM 2011 NOI 13 April 2010