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Western Fuels-Colorado, LLC <br />Thircl Park Prospective Coal <br />Resource Area <br />ARCADIS Exploratory Cores <br />Class III Cultural Resource <br />Inventory <br />intervals. At the locations where the center stake was not found, a 2.5-acre <br />area (a 100-by-100 meter block) centered on the Universal Transverse <br />Mercator (UTM) coordinates of the core hole location was surveyed. A total of <br />102.5 acres was surveyed on federal surface for the core locations. The <br />overland access corridors were surveyed by a single pedestrian transect along <br />the flagged center line. Where fhe flags were widely spaced or had fallen (i.e., <br />were not easy to follow), a corridor about 12 to 15 meters wide was covered by <br />a zigzag pedestrian transect. <br />Surface visibility was very good to excellent, and weather was clear and warm <br />with a light breeze. These conditions were excellent for the discovery and <br />identification of cultural resources. <br />Discovered cultural materials were classified as sites or IFs. Food and <br />beverage containers along roadways that were not identifiably more than 50 <br />years old and isolated scraps of sheet metal were not documented. A <br />prehistoric isolated find is defined as one to four artifacts that might include <br />diagnostic tools within 50 meters of one another or up to 30 unmodified or <br />minimally modified pieces of the same raw material. Any larger grouping of <br />artifacts, or any artifacts associated with non-portable cultural features, was <br />recorded as a site. All sites were recorded on appropriate Colorado Cultural <br />Resource Survey site forms, and their locations were plotted on U.S. <br />Geological Survey (USGS) 7.5-minute topographic maps. Both topographic <br />and orthophoto maps printed at a scale of 1:6,000 were used as field maps. No <br />artifacts were collected during the survey. <br />Results <br />' Two isolated finds were discovered and documented. Isolated find 5MN8085 is <br />a single complete flake of translucent tan chert with a small area of white <br />cortex on the proximal end. This flake measures approximately 31 by 28 by 9 <br />millimeters (size grade 5), It was found on bare ground in an area of low, <br />dispersed sagebrush with a sparse grass and forb understory. The closest <br />potential source of surface water is an unnamed ephemeral drainage about 60 <br />' meters to the northwest. Isolated find 5MN8086 is a small scatter of about 25 <br />to 30 unmodified flakes of greenish-gray silicified siltstone ranging from size <br />grades 1 through 5. Approximately 80 percent are complete flakes, 15 percent <br />are broken flakes, and 5 percent are flake fragments or shatter. About 20 <br />percent have visible cortex, and all appear to be from early stage lithic <br />eeoonae-wmem FUeis am PVxsu~eq_(r-rean.aoc $ <br />