Day 4: Data collection

Today we conducted three more lines of resistivity measurements, which took pretty much the entire day.  Each line had electrodes spaced at maximum 150 meters in each direction from the starting position.  Using the three lines, we were able to cover 900 meters of the valley.  The three vertical soundings that we measured will be combined to generate a 2-D image of the layers of rock below the valley.  

Diligently placing electrodes 150 meters away from the central point.