The Whistling Elk
Subsurface Imaging Project

by Kenneth L. Kvamme




Depth Studies: Resistivity Tomography


Resistivity tomography relies on the acquisition of densely sampled data in the x, y plane, repeated at multiple depths. The resulting data matrix represents a volume that may be sliced horizontally to offer plan views at various depths or vertically to yield profiles or sections along any line.


Limited areas of multi-depth resistivity data were acquired at Whistling Elk during the summer of 1999. The region illustrated here was sampled from 50-200 cm below the surface in depth increments of 25 cm. This area bisects the fortification ditch immediately below the western bastion loop. Cross-sectional views give indications of the shape and depth of the fortification ditch.



This project was supported by a technology transfer grant from the National
Center for Preservation Technology and Training, National Park Service.

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