News from the DNR Office of Communications

DNR Releases Upgraded Internet Mapping Application

Annapolis, Md. (March 9, 2011) — The Maryland Department of Natural Resources (DNR) has released a new version of its Internet mapping application, MERLIN Online.

MERLIN (Maryland’s Environmental Resources and Land Information Network) has been in use at DNR since 1999 and was Maryland’s first Internet mapping application. It has recently been redesigned to take advantage of new technology.

“DNR has long been a leader in using mapping technologies in Maryland to better understand problems and their solutions,” said Kenny Miller, Maryland’s geographic information officer. “MERLIN Online represents the next step in leveraging the existing MD IMap assets (http//  developed to support Governor O’Malley’s vision for improved decision making and transparency in government.”

MERLIN Online allows a user to create a map for any location in Maryland, including their choice of base map and user selectable data. Users can point to a location on the map and receive information about that site. Another powerful feature of the system is access to information that helps to better understand the data being viewed, such as the origin of the data, how it was created, accuracy and age.

Other features include measuring tools, a map legend, hyperlinks from data layers to other web pages, Frequently Asked Questions (FAQ) and a Help Guide that can be printed to assist a user as they learn to navigate through the system. Users must have a current web browser with Adobe Flash Player installed.

MERLIN Online was developed for internal and external customers because everyone is "hungry" for maps to help make better, informed decisions. Promoting MERLIN Online supports the Department’s mission, provides for wise economic development in Maryland and promotes stewardship of our natural resources. Use it today at

   March 9, 2011

Contact: Josh Davidsburg
410-260-8002 office I 410-507-7526 cell

The Maryland Department of Natural Resources is the state agency responsible for providing natural and living resource-related services to citizens and visitors. DNR manages nearly one-half million acres of public lands and 17,000 miles of waterways, along with Maryland's forests, fisheries and wildlife for maximum environmental, economic and quality of life benefits. A national leader in land conservation, DNR-managed parks and natural, historic and cultural resources attract 11 million visitors annually. DNR is the lead agency in Maryland's effort to restore the Chesapeake Bay, the state's number one environmental priority. Learn more at