Morrow Archaeological Geophysics

The route of a planned utility line passes through a known archaeological complex associated with the National Register of Historic Places listed Stubbs Earthworks site. In order to preserve the integrity of the pre-Contact site, the Ohio State Historic Preservation Office (OH SHPO) requested that non-invasive geophysical surveys be conducted prior to construction activities. Rhea was contracted to support the Project’s archaeology team, overseeing the collection of geophysical data and interpreting findings at the site.

OH SHPO requested that a multi-method geophysical survey be conducted at the Project Site in order to identify any potential subsurface archaeological features. The total survey area covered approximately 3,800 square meters. Rhea’s archaeologist oversaw the collection of conductivity and magnetic susceptibility data using the EM-38 MK 2, magnetic gradient data using a Foerster Ferex fluxgate gradiometer, and ground penetrating radar (GPR) using a MALÅ Geoscience system with a shielded 250 MHz antenna. Rhea’s geophysical team then processed, mapped, and interpreted the data, identifying all potential cultural features within the project area.

Rhea identified several potential archaeological features quickly and cost-effectively, without requiring a full archaeological excavation. With this information, the client can finalize the placement of the proposed utility line while meeting their cultural preservation obligations.

Using non-destructive geophysical techniques, Rhea was able to efficiently and cost-effectively identify potential archaeological features within the footprint of a proposed utility line. Rhea’s efforts will help the client to stay in compliance with cultural heritage legislation without the expense of a full excavation.

Services: Cultural Resources Management , Geophysics

Industries: Energy + Utilities