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!

What's Hot

15th Annual Auction at September 17th Meeting

One of the highlights of the year for the MGS is its annual auction. This is an opportunity to add fossils, minerals, and artifacts to collections or, for members, to auction off some of their specimens. The auction financially benefits the MGS, helping to keep dues low. Some wonderful specimens have been auctioned in the past, prompting spirited bidding. Everyone is invited to come and bid. More information on the auction and the forms needed for members to enter items in the auction can be downloaded here.

Some Highlights of the July Meeting

MGS President Gary Lohman gave an informative and hands-on talk on radioactivity in minerals and the radioactivity that can be present in fossils.





Next Meeting

Sunday, September 17, 2017

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 Meetings & Trips tab above
or at this link.

Annual Auction

Mineral of the Meeting: Herderite


Hydroxylherderite on topaz found in Pakistan. Image reproduced with permission of Rob Lavinsky under Creative Commons Attribution-Share Alike 3.0 Unported license. Image is available from Wikimedia Commons.

A Tour of Dinosaur Park ~ Blog Post

Among Maryland's paleontological treasures is Dinosaur Park in Laurel. Visitors to this quarry become citizen-scientists in pursuit of Lower Cretaceous dinosaur fossils. Ben, a museum educator in the D.C. area and author of the Extinct Monsters blog, provides readers with an engaging and information view of the Park in his recent post titled "A Tour of Dinosaur Park".


Volume 25 (2016) Of The MGS Newsletter Now On The Website

The MGS newsletter, The Rostrum, is one of the most important benefits of club membership. The newsletter is delivered to members' email boxes six times a year, full of news about past and future club events, and articles about minerals and fossils. Issues from selected years can be found here.


Next Trips

None currently scheduled.. Information and policies regarding MGS field trips can be found on the Upcoming Trips page.


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.

Gem Cutters Guild of Baltimore hosts its 53rd Annual Atlantic Coast Gem, Mineral, Jewelry, and Fossil Show on September 23-24 at Howard County (MD) Fairgrounds. More information here.


FOSSIL Project

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 2017 newsletter can be found here.

MGS is on

Problems with this page? Email the . Thanks.