Over 4000 geologic quadrangle maps and publications are now available online in PDF format. If you know the name of the quadrangle you are interested in, you may locate PDF files using the map series ...

according to United States Geological Survey maps from the mid-20th century. There are several testing methods, Santi said, including drilling, using cables that run electric currents ...

NORMAN, Okla. (KFOR) – The Oklahoma Geological Survey is wanting to double the size of their data network. In order to do that, they need landowners to give them permission to install a Seismic ...