Geophysical Investigations at the Ellsworth Rock Garden Site (21SL1006), Voyageurs National Park

The geophysical survey at Voyageurs National Park (VOYA) was conducted as part of the archeological investigations of the Ellsworth Rock Gardens Site (21SL1006). The site was located on the south side of the Kabetogama Peninsula overlooking Kabetogama Lake (Figure 1). The geophysical survey included a magnetic survey with a fluxgate gradiometer, a resistance survey with a resistance meter and twin probe array, a conductivity survey with an electromagnetic induction meter (EMI), and a ground penetrating radar survey (gpr) with a gpr cart system with 400 mHz antenna. The geophysical investigations were part of a larger park wide archeological site condition assessment project conducted by the Midwest Archeological Center (MWAC) in the summer of 2006. The geophysical survey was also conducted in order to determine the feasibility of geophysical techniques at archeological sites within VOYA. The geophysical survey was conducted by MWAC supervisory archeologist Jeffrey J. Richner, archeologist Steven L. DeVore, and archeological technicians John Banks, Brennan Dolan, and Kyle Klemme.