Geologic Map Day: Celebrate on October 18!

Celebrate the second annual Geologic Map Day! On October 18, as a part of the Earth Science Week 2013 activities, join leading geoscience organizations in promoting awareness of the importance of geologic mapping to society. Earth Science Week 2013 will be celebrated October 13-19.

Be sure to check out the Geologic Map Day poster included in this year's Earth Science Week Toolkit at

Showing how geologic maps can be used to understand natural hazards, the poster also provides step-by-step instructions for a related classroom activity and links to state geologic maps and maps of national parks. Additional resources for learning about geologic maps can be found on the Geologic Map Day web page

"As the saying goes, 'Civilization exists by geological consent - subject to change without notice.' Outside of Alaska, California is the most seismically active state in the country, with more than 70 percent of the Nation's earthquake damage occurring in this state every year. Mapping earthquake faults and their surrounding geology is a key element in making California safer for its communities," says Dr. John Parrish, President of AASG and State Geologist of California.

Geologic Map Day partners include the American Geosciences Institute (AGI), the Association of American State Geologists (AASG), the U.S. Geological Survey, the National Park Service, the Geological Society of America, and Esri.

To find your state's geologic survey and additional geologic mapping information go to and click on the state of interest.


The Association of American State Geologists (AASG) is an organization of the chief executives of the state geological surveys in 50 states and Puerto Rico. The first state survey was established in 1823 in North Carolina. By 1840, there were at least 15 state surveys, most of which were charged with the discovery of mineral, energy, land, and water resources in their state or territory. Since 1908, the Association has met regularly to discuss issues of common interest and to initiate united actions when warranted.

For questions and information, contact DGS at, 302-831-2833

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