The Maryland Geological Society is a non-profit organization dedicated to the collection, study, and display of all aspects of the geological sciences. Members include amateur and professional fossil and mineral collectors. Membership is open to all.

The club meets at the Community Center in Bowie, Maryland, on the third Sunday of every other month, beginning in January. Visitors are welcome!

Latest Club News


The MGS annual auction is a wonderful opportunity to acquire those fossils, minerals, and artifacts "necessary" for your collection. It's also a chance to give some of your own specimens a new life in someone else's collection. All of this is great fun and an important way for the club to raise funds and keep its annual dues low. The rules and forms necessary to offer some of your treasures at the auction can be found here. Come and participate in this important event in the life of your club.

Seen at the July Meeting

MGS Vice President Eric Seifter had an incredible array of fossil tree sections on display (part of a gift from a colleague).

Eric is seen below holding up a piece of a Triassic conifer found in the Chinle Formation, Arizona.

Here is a slab of fossil fern, Psaronius cottae, from the Permian. It was found in the petrified forest of Chemnitz, Saxony, Germany.

Additional photographs from the July meeting can be found on the MGS Gallery Page.

Next Meeting

Sunday, September 15, 2019

Featuring the 17th Annual MGS Auction. Auction information and forms can be downloaded here.

Meeting runs from 11 am to 3 pm
at the Bowie Community Center,
3209 Stonybrook Drive, Bowie, Maryland 20715

Directions to the Center can be found
under the Activities tab above
or at this link.

Mineral of the Meeting: Molybdenite

This specimen is New South Wales, Australia. This image is reproduced with permission of Rob Lavinsky under Creative Commons Attribution-Share Alike 3.0 Unported license, and is available from Wikimedia Commons.

Recent Newsletter Awards

At the July meeting, MGS newsletter editor Rick Smith announced awards that articles appearing in the 2018 issues of The Rostrum had received at the regional and national levels. Winners included Bob Farrar, Joy and Tom Piscitelli, Jim Stedman, and Flo Strean. More information on these awards and others earned by the newsletter back to 2002 can be found here.

Shows & Related Events

A list of club shows in the eastern region of the U.S. is on the EFMLS' calendar.

Selected shows and related events are listed below:

Sept. 28 & 29, 2019 - The 55th Annual Atlantic Coast Gem, Jewelry, & Fossil Show hosted by the Gem Cutters Guild of Baltimore will take place at the Howard County (MD) Fairgrounds. More information can be found here.


The MGS Trips page has information on policies regarding trips and details about any upcoming trips. MGS trips are restricted to members.

Smithsonian Publication about the Calvert Cliffs

The Geology and Vertebrate Paleontology of the Calvert Cliffs, Maryland, edited by Stephen J. Godfrey, offers detailed descriptions and stunning pictures of vertebrate fossils from the Cliffs. A PDF copy of the book is available here.

FOSSIL Project - Latest Newsletter

The FOSSIL Project, sponsored by the Florida Museum of Natural History and funded by the National Science Foundation, is networking amateur and professional paleontologists and their organizations. Its Summer 2019 newsletter can be found here.

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