Thank you for helping Maryland build an inventory of geospatial resources! In order to access the tools required to create new records about your GIS data and resources, you must first log in below.

If you have already created a user account, please log in using the Current Users section below.

If you have not yet created an account, please click on the Register button in the New Users section below. In order to maintain consistency in our user database, only one account is issued per organization, agency, or company. Individual agency points of contact are responsible for sharing account information as appropriate.

The Maryland Mapping Resource Guide (MMRG) is Maryland's node of the National Spatial Data Infrastructure (NSDI). Unless otherwise specified, information about geospatial resources (data, applications, mapservices, people, etc) entered into this site will be publicly accessible. In addition to being accessible using MMRG search tools, information will also be accessible as part of the Geospatial One-Stop web site (http://www.geodata.gov). Please note that although the information about resources is available, access to each resource is controlled exclusively by the owner of the resource. If you wish to share information as part of the Maryland Emergency Geographic Information Network (MEGIN) that is sensitive in nature, and do not want knowledge of the resource to be exposed to the public, please directly contact the MEGIN Program Manager, Matt Felton (mfelton@towson.edu).

Please note: If your login is idle for 30 minutes or more you will be required to log in again.