Last updated: August 6, 2013
In December of 2012, the Park performed a geophysical survey in an area to the east of the current Muhlenberg interpretive huts. The geophysical surveys undertaken at include ground-penetrating radar (GPR), magnetometry, electrical conductivity and electrical resistivity. Geophysical surveys are much like going to the doctor to get an X-ray, MRI or CT scan. These tests, like the geophysical tests, show that something is different or abnormal, but they do not necessarily tell you what the abnormality is or why the abnormality exists. Depending on the type of geophysical survey performed, different anomalies can be detected. For example, GPR excels in identifying foundation walls or shaft features; whereas the magnetometer identifies areas of burning or large deposits of iron. A few of the anomalies that we have detected seem to be in a semblance of orderly rows. Perhaps these anomalies represent huts from the encampment? As our field season begins to wind down, we are focusing on testing the anomalies that we have detected using geophysics.