4.10. SR 06-03-2013 - Laserfiche WebLink

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• Shovel testing should be performed along the ADA Compliant Trail, the Unpaved Trail, the northern and western border of the Native Prairie Planting and the Parking Area as indicted in Exhibit B. At 15m intervals this would comprise approximately 200 shovel tests. • Shovel testing should be performed at the areas marked as terraces in Exhibit A. These areas were noted during the visual inspection as locations particular likely to contain archaeological materials based on slope and elevation. • Shovel tests should be 35 to 40cm in diameter and excavated to culturally sterile subsoil (subsolum or C-horizon). All shovel test soils should be screened through 1/4 inch hardware cloth and examined for artifacts and ecofacts. Soil descriptions, generalized colors and basic stratigraphy should be recorded for each test, and the test holes should be immediately back-filled. Artifacts should be photographed and identified. Test locations should be mapped with a GPS unit. • If areas of disturbed soils unlikely to contain archaeological materials are encountered (e.g. recent historic fill),manual soil probes (minimum 3/4 inch diameter) should be substituted for shovel tests to determine the boundary of the disturbance. Excavation Units (6-10 units 1x1 meter excavation units will be excavated in 5cm levels using trowels or shovel skimming. The first excavation units will be placed on the terraces as indicated in Figure 1, as these are areas of high probability to contain archaeological materials. Levels will be recorded using a standard excavation form. Data recorded on level forms typically included elevation, details of screening, soil texture, soil color, soil structure, soil consistency, rock fragments, finds summary, record of samples, and description. Levels will be photographed and scale drawings of features, fire-cracked rock concentrations, and other relevant material will be made as appropriate. Plans and profiles will be drawn for each trench. The PI will maintain a narrative notebook. All sediment removed from excavation units will be dry-screened through 1/4 inch mesh hardware cloth. A one liter soil sample from each feature will be processed through 1/16-inch mesh by water screening or flotation for light fraction (floatable) floral and faunal remains and small flaking debris and heavy fraction floral and faunal remains. Levels that evidence major disturbance or lack of integrity will be excluded from this requirement. A soil column or continuous core will be lifted from the profile of each unit. This material will be retained for possible sediment and microstratigraphic analysis. PROJECT CONDITIONS • Trefoil will not be held responsible for weather delays (e.g. snow,heavy rain, saturated soils). • Client will arrange all necessary permissions to access land. • Trefoil will not be held responsible if permission to access land is denied, and client is responsible for mobilization fees if permission to access land is denied while a crew is in the field. • Trefoil is responsible for all appropriate licensing. DELIVERABLES • Final Report that details the background research, fieldwork results, and analysis that places the archaeological resources into local and statewide historic contexts. 3 papers copies and 1 digital. • Supporting materials, including but not limited to digital photographs, GPS and GIS data, field notes and sketch maps, site maps, and a City of Elk River map showing the site and excavation locations. • Digital and paper copies of appropriate material for collection at the Minnesota State Historical Society and the Sherburne County Historical Society. 9