Laserfiche WebLink
Preliminary Report for Data Recovery at Sites MK -1-082317 and MK -2-082317 Colowyo Coal Company <br />Figure 10. Site MK -1-082317, Feature 3, Full Excavation, facing north. <br />3.1.3.4 Feature 5 <br />Feature 5 is a semi -circular stained sediment feature with dense charcoal and pebble sized, <br />rounded gravels measuring approximately 54 cm north to south by 51 cm east to west. Actual top <br />of the feature is unknown. The feature appears to be approximately 20 cm below ground surface. <br />The size and location of the feature within the site grid system necessitated two 1 by 1 m units <br />being established to investigate it. <br />The feature's depth below the mechanically exposed surface is 9 cm below the 195N 196E unit <br />datum. Overall feature shape appears to be roughly circular in planview and basin shaped in <br />profile (Figures 11 and 12). Root and burrowing insect action is moderately distorting the northern <br />half, while impacts to the southern half are significantly distorting its shape. Feature fill consisted <br />of dark stained sediment (10YR2/1, Gray); dense charcoal flecking; and dense HAR and <br />unaltered rock. Five pieces of HAR were recovered. One HAR is in the 5 to 3 cm diameter size <br />class (< 0.25 kg), two are in the 3 to 1 diameter size class (< 0.25 kg), and two are in the 1 cm <br />diameter size class (< 0.25 kg). <br />Tetra Tech September 29, 2017 <br />