Things you need to know about Middleburg excavations before you use the data:

• Measurements are in meters and centimeters.
• All sediment was screened through 1/4 inch mesh, with the exception of a few sediment samples that were floated.
• Some contexts that were excavated but did not contain artifacts were not designated a Field Specimen Number (FS#) in the field. In order to represent these contexts in the archive, DAACS has created FS numbers for these negative contexts. DAACS-assigned context ids for these contexts begin with the same number as the context or FS number above the layer in question, and have a ".1" suffix. For example, "209.1" is the context ID for the sediment layer below context 209. 209.1 had no artifacts. The following DAACS-assigned FS numbers were given to contexts that had no artifacts: 017.2, 054.1, 054.2, 054.3, 141.2 , 163.2, 209.1, 225.1
• An Oakenfield corer measuring 1 inch in diameter was used at systematic intervals in the block excavation area. Grid coordinates were recorded for each core. Artifacts were recovered for some of the cores. Stratigraphic layers within a core that contained artifacts were assigned FS (context) numbers; no FS numbers were assigned for "negative" layers within a core. In order to represent all sediment layers in the core samples, whether they were negative or positive, and to lessen confusion, DAACS has created new contexts for all core samples. The cores have been assigned context numbers beginning with "Core1.A" (Core 1, Level A), etc. Center points for the cores have been recorded as 'Quadrat Boundaries.'
• Please see the Site Features page for detailed information about features at Middleburg.

Middleburg Site Maps

• Magnetic North is 39 degrees east of grid north for Middleburg excavations.
• Quadrats are identified by their southwest corner coordinates, which also serve as Quadrat IDs.
• A final site map that contained all quadrats and features was never compiled for the Middleburg excavations. As a result, the site maps included on the DAACS website have been compiled by Leslie Cooper, DAACS Archaeological Analyst. Cooper used Microstation and ArcGIS to compile hundreds of maps and field sketches that were drawn by the excavators between 1986 and 1999. These maps were found throughout the context and feature field forms. Cooper combined these small individual feature and context maps with two large area survey maps produced by Ferguson and Babson in the late 1980s. Ferguson consulted extensively with Cooper on the production of the Middleburg/DAACS site maps and they believe they are the best representation of the contexts and features excavated at Middleburg between 1986 and 1999. We suggest, however, that researchers use the maps in conjunction with the context and feature descriptions that can be retrieved through the Context Query page.
• Portions of a number of features are represented on the Middleburg site maps with dotted lines. These dotted lines are approximations of the feature's dimensions since they were mapped in one quadrat but not mapped in the other quadrats. However, excavator descriptions on unit and feature forms indicate that these features extended into other quadrats and therefore the dotted lines represent DAACS's best guess as to the extent of these features