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Native American and Spanish Ancillary Structures - Warren Wilson ...

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that leave charcoal in the ground where the post once<br />

stood. Post molds are identifiable because they have<br />

a different color soil stain located inside the posthole<br />

stain. Most postholes do not contain post molds, so<br />

unless the posthole excavation form or map indicates<br />

that a post mold was present, I assumed there was no<br />

post mold present.<br />

Using these categories I observed spatial<br />

relationships between the postholes on the Berry site<br />

map, created in Adobe Illustrator. I separated the<br />

postholes into excavated, unexcavated, <strong>and</strong> possibly<br />

cultural (STP) layers <strong>and</strong> separated the excavated<br />

postholes into layers based on depth, diameter, <strong>and</strong><br />

shape. I was able to view each map layer separately<br />

from the other layers, so by creating these different<br />

layers, I can view, for example, all of the large excavated<br />

postholes without the interference of unexcavated<br />

postholes or postholes of different sizes. Postholes with<br />

similar depths may have been part of a single structure,<br />

so the locations of postholes with similar depths were<br />

compared <strong>and</strong> analyzed for structure patterns. Diameter<br />

also contributes to identifying posthole patterns, but is<br />

not a good indicator on its own. Although postholes<br />

may have been larger than the posts that were placed in<br />

them posts of similar sizes probably had postholes of<br />

similar sizes, so postholes with similar diameters may<br />

indicate structure patterns.<br />

Besides using the information I was able to<br />

obtain from my instrument for excavated postholes, I<br />

also examined the Berry site map for posthole patterns<br />

including all postholes <strong>and</strong> features. Later, I examined<br />

the map including all postholes, but excluding features.<br />

The number of postholes at the Berry site has never<br />

been recorded, so I do not know how many postholes<br />

were included in this part of my research.<br />

All of the data I used came from the north<br />

end of the mound, outside of the five burnt structures.<br />

The principle investigator (Dr. David Moore) used a<br />

purposive sampling method in order to excavate three<br />

by three meter units in <strong>and</strong> around the structures. From<br />

these excavated units postholes were also purposively<br />

selected to be excavated as teaching tools during the<br />

field school. Out of the 173 excavated postholes, I was<br />

able to use data from 154 of the postholes. Postholes<br />

4, 35, 1037, 1054, 1055, 1098, 1102, <strong>and</strong> 1123 were<br />

determined to not be postholes after excavation, <strong>and</strong> I<br />

removed them from my analysis <strong>and</strong> the site map.<br />

Findings <strong>and</strong> Discussion<br />

I used several different methods of data analysis<br />

to determine the significance of the characteristics of<br />

the non-structural postholes at the Berry site. First, I<br />

compiled all of the data from the posthole excavation<br />

forms <strong>and</strong> determined the maximum depth, maximum<br />

diameter, minimum depth, minimum diameter, mean<br />

depth, mean diameter, st<strong>and</strong>ard deviation of depth,<br />

<strong>and</strong> st<strong>and</strong>ard deviation of diameter for all of the nonstructural<br />

postholes <strong>and</strong> postholes divided by shape.<br />

I gathered comparative data from the postholes in<br />

<strong>Structures</strong> 1 <strong>and</strong> 5 at the Berry Site as well as from the<br />

<strong>Spanish</strong> site, Santa Elena, <strong>and</strong> the Cherokee site, Chota-<br />

Tanasee. Second, I observed the spatial relationships<br />

between the postholes on the Berry site map.<br />

Berry Site Non-Structural Postholes<br />

Of the Berry site’s numerous postholes not<br />

associated with the five known structures, I found the<br />

average depth <strong>and</strong> diameter of 167 excavated postholes<br />

(Table 1). The average depth is 13.176 cm, <strong>and</strong> the<br />

average diameter is 16.733 cm. Depths range from<br />

1.1 cm to 72 cm, <strong>and</strong> the diameters range from 1.5<br />

cm to 53 cm. After finding the averages of all of the<br />

postholes, I divided the postholes based on shape. The<br />

average depth of the 39 circular postholes is 14.937 cm,<br />

<strong>and</strong> the average diameter is 20.041 cm. The 16 oval<br />

postholes have an average depth of 17.644 cm <strong>and</strong> an<br />

average diameter of 18.881 cm. The square postholes,<br />

of which only 5 have been excavated, have an average<br />

depth of 23.6 cm <strong>and</strong> an average diameter of 31.4 cm.<br />

Table 1<br />

PH ID # of<br />

PHs<br />

Berry Site Non-Structural Excavated Postholes<br />

Mean<br />

Depth<br />

(cm)<br />

St<strong>and</strong>ard<br />

Deviation<br />

of Depth<br />

(cm)<br />

Max<br />

Depth<br />

(cm)<br />

Min<br />

Depth<br />

(cm)<br />

Mean<br />

Diameter<br />

(cm)<br />

All 167 13.2 11.0 72 1.1 16.7<br />

Circular 39 14.9 14.4 72 1.5 20.0<br />

Oval 16 17.6 14.2 40 3 18.9<br />

Square 5 23.6 9.4 38 15 31.4<br />

PH ID St<strong>and</strong>ard<br />

Deviation of<br />

Diameter (cm)<br />

Max Diameter<br />

(cm)<br />

Min Diameter<br />

(cm)<br />

All 9.9 53 1.5<br />

Circular 11.5 50 5<br />

Oval 9.9 33 1.5<br />

Square 6.3 40 23

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