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~ccavation Unit 3. E[J3 adjoins EU2 on the diagonal north and west. • <br />Approximately ecP:dvalent areas of 50 an x 200 an on the north and south <br />sides of backhce trench 1 were excavated to a depth of approximately <br />40 on below PGS; a total of 0.80 cubic meters of dirt was reiroved fra-n <br />EU3. Artifacts recovered fran this unit are very sparse, sFarser than <br />both EU1 and EU2. This paucity of artifacts, however, has been partially <br />ameliorated by th.e existence of at least three cultural features <br />(Appendix: Figures 21 and 23). Feature 3-2 is a well defined sani.circle <br />(the rsnainder continues into the north wall) of upright sandstone slabs <br />which has been defined as a hearth (Hearth 1 on Map 3). E~tposed on <br />the Satre level anal to the east of Feature 3-2 is a layer of angular sand- <br />stone cobbles, Feature 3-4. This cobble layer probably continues to the <br />north outside of the unit and probably had surrounded Feature 3-2 on the <br />south side before its removal during the digging of backhoe trench 1. <br />On the opposite side of the trench is Feature 3-3, a circular arrange- <br />ment of large and very large upright sandstone slabs. This feature, <br />defined as a hearth (Hearth 3 on Map 3), was partially exposed in the <br />south wall of backhce trench 1, that exposure being the primary reason • <br />for the location of EU3. Feature 3-2 was bisected along an east-west <br />axis and pollen and charcoal samples were removed fran the interior. <br />Upon oar~>letion of excavations in EU3, a stratigraphic profile of the <br />north wall was drawn and photographed to show the relationships of the <br />cultural and natural layers (Appendix: Figure 24 ) and charwal and <br />pollen samples were obtained from that profile. <br />E;accavation Unit 4. Areas of 60 cm x 200 an and 40 an x 200 an on the <br />north and south sides, respectively, were excavated to a depth of <br />approximately 40 an below PCS; a total of 0.80 cubic meters of dirt was <br />removed fran this last 2 x 2 m size unit. Consistent with the pattern <br />already established for the other three units, only a very sna11 number <br />of artifacts has been recovered fran EU4. This unit is distinguished-- <br />as other units have been-by the existence of a distinctive cultural <br />feature. Feature 4-3 is a neatly defined semicircle (the other, south, <br />half of the feature was removed by the backhoe) of large, upright sand- • <br />stone slabs with a slab bottom (Appendix: Figures 25 and 26). The <br />32 <br />