This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. OP&R organizes and prepares for public health and medical emergencies through...

This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. This data layer has been modified from its original version. It contains state boundaries...

Attendance boundaries for elementary schools in the Chicago Public Schools district for school year 2007-2008. Generally, all students in the applicable elementary school grades...

The 2015 cartographic boundary KMLs are simplified representations of selected geographic areas from the U.S. Census Bureau's Master Address...

This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. In 1984 - the General Assembly enacted the Chesapeake Bay Critical Area Act to regulate...

This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The 2006 Chesapeake Bay Submerged Aquatic Vegetation (SAV) was mapped from 1:24 - 000 black...

This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The 2000 Chesapeake Bay Submerged Aquatic Vegetation (SAV) was mapped from 1:24 - 000 black...

This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Line features of rivers and streams (detailed shape) in Maryland. Last Updated:...

This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Maryland Sports (http://www.marylandsports.us/) has identified sport venues located...

This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Maryland Sports (http://www.marylandsports.us/) has identified sport venues located...

2000 Census block boundaries clipped to Chicago. The data can be viewed on the Chicago Data Portal with a web browser. However, to view or use the files outside of a web...

Attendance boundaries for elementary schools in the Chicago Public Schools district for school year 2008-2009. Generally, all students in the applicable elementary school grades...

This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This layer is the MGRS 1000m grid that covers Zone 18S which covers part of...

Point data representing approximate location of Station head house. (Not necessarily where an entrance to station would be.) Projected Coordinate System:...

KML file of trails within the Forest Preserve District of Cook County. To view or use these files, special GIS software such as Google Earth is required.

This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Maryland Sports (http://www.marylandsports.us/) has identified sport venues located...

This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. This dataset contains areas in the Chesapeake Bay with low amounts of oxygen. Excessive...

This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. The 2014 Chesapeake Bay SAV Coverage was mapped from 1:24 - 000 black and white aerial...

This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The Chesapeake Bay SAV was mapped from 1:24 - 000 black and white aerial photography to...

KML file of private schools located in Cook County. To view or use these files, special GIS software such as Google Earth is required.