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Prehistoric architecture in the Eastern United States has been investigated since in the early 1940s when William S. Webb excavated several Woodland structures in Kentucky. For the past 70 years archaeologists have debated the configuration and function of these structures and produced several renderings and reconstructions of their forms based on historic Native American examples, modern Bedouin settlements, and from “archaeological imagination”. The premise of this thesis is to offer a comprehensive interpretation for the form and function of the McCammon Circle structure through comparative data on Woodland prehistoric structures in the Eastern United States. The McCammon Circle represents the subsurface remains of a large circular structure, which was excavated by Weller & Associates, Inc. in 2005, that dates to the Middle Woodland period. These remains include various post holes, features (pits/basins), and a somewhat sparse artifact assemblage, including various lithic and ceramic artifacts from the site. The first part of this study will involve a comparison of the structural attributes of floor area, average posthole diameter, and average posthole depth for each of the 36 analogous structures within the regional study to the McCammon Circle. The McCammon Circle will be placed contextually with the interpretations for form and function of the other structures in the comparison. The form of the McCammon Circle will be compared to five building forms in the region. The function of the McCammon Circle will then be compared to other researcher’s interpretations for the similar structures within the aforementioned comparison. These comparisons will allow for a comprehensive interpretation for the McCammon Circle in regards to the most widely accepted viewpoints in the regional archaeological community. These comparisons indicated that the McCammon Circle was most similar to structures that have been interpreted as unroofed in form and ceremonial in function. The second part of the study will be to test the ability of an engineering analysis utilizing Euler’s formula in determining the possible form of the McCammon Circle. Euler’s formula will be used to determine whether or not the structure could have supported a roof by testing the load bearing capabilities of the structural posts. Euler’s formula will be used to see whether or not it is applicable to aiding in the interpretation of prehistoric structures in general. This will hopefully allow future researchers to decide whether or not Euler’s formula should be included within their own engineering analysis of prehistoric architecture based upon its merits and shortcomings. Euler’s formula proved to be unreliable in ascertaining the form of the McCammon Circle because it failed to take into account several other variables, such as horizontal loads and soil dynamics, which are integral to determining possible building form. However, Euler’s formula may prove complementary to interpreting prehistoric structural form when combined with other engineering analyses.