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Historic Properties Treatneeni Plan, Collotn Mine, Colorado 26 <br />4.0 SCOPE OF WORK <br />This section of the report details the Phase I and II scope of work for each site. Table 4.1 <br />summarizes the amount of excavation proposed at each site. The purpose of the Phase I tests <br />will be to efficiently investigate significant buried cultural deposits that will then be mitigated <br />through Phase II data recovery. The augers will be used to define the areas of the sites that will <br />require 1 x 1-m test units, which will then lead to data recovery block excavations. The test <br />excavations will use standard archaeological field procedures. Phase I excavations at the four <br />sites will include 80 auger tests, 20 1 x 1-m test units, and three backhoe trenches. The <br />subsurface tests will be placed in areas of each site judged to have the greatest potential to <br />contain buried cultural remains and will be plotted on site maps that were prepared during <br />previous Class III inventories. Although specific numbers of auger tests and test units are <br />proposed for each site, the scope of work will be flexible to allow the project archaeologist to <br />re -allocate auger tests and test units as needed at individual sites. For instance, if 20 auger tests <br />and two test units are proposed for a site but initial testing of only 10 auger tests and one test <br />unit determines that the site does not contain significant cultural deposits, the remaining <br />10 auger tests and one test unit may be allocated to the other sites. <br />4.1 SITE 5MF969 <br />4.1.1 Phase I Excavation <br />Seven 1 x 1-m test units and 20 auger tests are recommended for the site. The units will be <br />placed next to the arroyo cutbank walls where bone and other cultural material have eroded out. <br />In areas where deposits appear either to be deeper than 1 m or to be horizontally extensive, test <br />units may be grouped to allow full exposure and evaluation of buried deposits. The auger tests <br />will be used to investigate other areas of the site that may contain subsurface cultural materials. <br />The test excavations will follow the methods detailed in Section 5.1 below. <br />47599 TRC Mariah Associates Inc. <br />