Information and resources on earth sciences provided by the American Geological Institut...

Directory of websites for scholarly societies dealing with all aspects of earth sciences...

Directory of websites for scholarly societies dealing with all aspects of environmental sciences...

A classified source listing for greylit ("Information produced on all levels of government, academics, business and industry in electronic and print formats not controlled by commercial publishing i...

Online map system that shows oil and gas fields and wells in Ohio, using data obtained primarily from well card records on file with the Ohio Department of Natural Resources, Division of Geological Survey...