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New Elk Mine Bridge Repair and Replacement Project <br />arcadis.com <br />New Elk Mine Cultural Report_TB_Rev030722 NOT FOR PUBLIC DISCLOSURE iv <br />LIST OF ACRONYMS AND ABBREVIATIONS <br />Allegiance Coal: Allegiance Coal Limited <br />Arcadis: Arcadis U.S., Inc. <br />C&W: Colorado and Wyoming Railroad <br />CF&I: Colorado Fuel and Iron Company <br />CFR: Code of Federal Regulations <br />Compass: Colorado’s Online Cultural Resources Database <br />GIS: Geographic Information System <br />GPS: Global Positioning System <br />NAD-83: North American Datum 1983 <br />NHPA: National Historic Preservation Act <br />NRHP: National Register of Historic Places <br />OAHP: Office of Archaeology and Historic Preservation <br />PCN: Pre-Construction Notification <br />ROW: right-of-way <br />RPA: Registered Professional Archaeologist <br />SR-12: Colorado State Highway 12 <br />USACE: United States Army Corps of Engineers <br />USC: United States Code <br />USGS: United States Geologic Survey <br />UTM: Universal Transverse Mercator <br /> <br /> <br /> <br />