Hager-Richter Geoscience, Inc. conducted surface geophysical surveys at Little Brewster Island in Boston Harbor in the fall of 2004.  Little Brewster Island is home to Boston Light, the oldest light station in the United States.

The objectives of the geophysical survey were to identify the locations of potential archaeological resources.

 
H-R performed the survey using three techniques: electromagnetic induction terrain conductivity (EM38), magnetics, and ground penetrating radar (GPR).

Many areas of possible archaeological significance were detected!