MERLIN Online

About MERLIN Online

The MERLIN System has been in use at the Maryland Department of Natural Resources since 1994. It originally operated across the DNR network using the TNTatlas® software interface. The Maryland Department of Natural Resources (DNR) worked with MicroImages, Inc. during 1999 to create an Internet interface to DNR?s MERLIN System. At that time, the existing MERLIN System provided access to over 150 gigabytes of geographic information products (spatial data) that are created by DNR and many other state, federal and private sources. These other sources include the Department of Planning, Department of Housing and Community Development, State Highway Administration, Virginia Institute of Marine Science, U.S. Fish & Wildlife Service, U.S. Geological Survey, the Federal Emergency Management Agency, SPOT Image Corporation and VARGIS, LLC. Since that time, the system has grown to include many more data layers from those and additional partners. In 2010, MERLIN Online was redesigned to take advantage of new technology.

MERLIN Online allows a user to produce a custom "map" for any location in Maryland, including their choice of base map and theme data layers. The identify tool allows users to point to a location on the map and received information about the data layers. Another powerful feature of the system is access to simple metadata (data about data) which are provided for novice users of the system. Metadata helps them better understand the data they are viewing. It explains who produced the data, how they were produced, the accuracy of the data, their age and the attribute codes that are used in the system.

Other features include the ability to measure distance and area, 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.

MERLIN Online users must have a modern web browser, with Adobe Flash Player installed.

MERLIN Online was developed because everyone is "hungry" for spatial data and to help them 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.

MERLIN Online should be used for guidance purposes only. The information contained in the Spatial Data on MERLIN is from publicly available sources, but no representation is made as to the accuracy of completeness of Spatial Data.