First Colony Foundation Using Archaeology and Historical Research to Find Sir Walter Raleigh's Roanoke Island Colonies
In Search of the First Colony


The Earthwork
Ditch Corner
Ditch Prism
Ditch Wedge
Wall Corner
Wall Prism
Wall Wedge
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The ditch of Fort Raleigh was divided into 34 separate sectors in order to estimate the volume of the dirt removed and given a unique sector number. These sectors were classified based on their shape as either a trapezoidal prism sector, a corner sector, or a wedge sector. In order to obtain the minimum and maximum estimations, each sector was measured midpoint to midpoint. The Total volume was calculated by the following equation:

Total Volume of Dirt Removed = Volume Of Trapezodial Prism Sectors + Volume Of Corner Sectors + Volume Of Wedge Sectors.

Trapazoidal Sectors Corner Sectors Wedge Sectors Total
Minimum Estimate: 8537.76 994.96 848.9 10381.62 ft^3
Maximum Estimate: 10137 1596.5 935.5 12669 ft^3
Maximum - Minimum 2287.38
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