Readme - a user's guide to this report - 20181220 This is a series of related North Carolina Geological Survey (NCGS) Open-File Reports: 1) OFR 2018-15 [Ophir District, NC], 2) OFR 2018-16 [Glendon and Robbins AES], 3) OFR 2018-17 [Star amd Carter Mines], and 4) OFR 2018-18 [Sawyer-Keystone Trend]). The reader should also refer to North Carolina Geological Survey, Special Publication 11, Volcanogenic polymetallic massive sulfide deposits (VMS) of the Carolina Terrane in central North Carolina; New Perspecitives and historical reports and data from the files of Phelps Dodge Exploration East (1975-1982), by Robert J. Moye, Jeffrey C. Reid, and David F. Lee, 456p. This provides some guidelines to the user. They are: 1. This report is a PDF document; it is best viewed at 100%. The document is fully searchable. 2. Use the PDF bookmarks for internal document navigation (e.g., open book mark tab and expand all sub-level links). 3. The figures are located at the end of the report. The figures are organized by increasing figure numbers. 4. Tables, if any, are not linked to the text bookmarks. Note: We suggest using Adobe Acrobat Professional for best resolution. Links to on-line references in citations require Internet access. Jeffrey C. Reid, PhD, PG, CPG Senior Geologist, Energy and Minerals North Carolina Geological Survey Raleigh, NC jeff.reid@ncdenr.gov 919.707.9205