In order to serve you better, we need your current mailing address and other contact information, such as e-mail. To make changes, download the attached form and fax it to the Membership Department, 240-632-1321.

 

 

 

GEOGRAPHIC AND LAND INFORMATION SOCIETY
6 Montgomery Village Avenue, Suite #403
Gaithersburg MD 20879
www.glismo.org; Phone: 240-632-9700