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NOAA: Storm Prediction Center
A collection of shapefiles created and compiled by the National Oceanic and Atmospheric Administration. The data is intended to help people understand and predict weather... -
Geologic Map of Garrett, Allegany and Western Washington Counties in Maryland
From the site: "This map includes short descriptions of geologic units and a cross section showing the distribution of geologic units under the earth’s surface. Among other... -
National Weather Service GIS Data Portal
NOAA weather and atmosphere information; many of the National Weather Service data sets are available in formats that are able to be imported directly into Geographic... -
U.S. Census Bureau - Geography
Easy access to census data in map, KML, shapefile, and other formats. Could be used for GIS mapping. -
Series Information for the 2019 Cartographic Boundary File KML Current...
The 2019 cartographic boundary KMLs are simplified representations of selected geographic areas from the U.S. Census Bureau's Master Address File / Topologically Integrated... -
2015 Cartographic Boundary File, United States, 1:20,000,000
The 2015 cartographic boundary KMLs are simplified representations of selected geographic areas from the U.S. Census Bureau's Master Address File / Topologically Integrated... -
MD iMAP: Maryland Archived American Community Survey Zip Code Tabulation...
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The American Community Survey (ACS) is a nationwide - continuous survey designed to provide... -
Unpublished Digital Pre-Hurricane Sandy Geomorphological-GIS Map of the...
**THIS NEWER 2016 DIGITAL MAP REPLACES THE OLDER 2014 VERSION OF THE GRI GATE Geomorphological-GIS data. The Unpublished Digital Pre-Hurricane Sandy Geomorphological-GIS Map of... -
MD iMAP: Maryland Sport Venues - Soccer
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.govMaryland Sports (http://www.marylandsports.us/) has identified sport venues located... -
Digital Geologic-GIS Map of the Minidoka National Historic Site, Idaho (NPS,...
The Unpublished Digital Geologic-GIS Map of the Minidoka National Historic Site, Idaho is composed of GIS data layers and GIS tables in a 10.1 file geodatabase... -
MD iMAP: Maryland Education Facilities - Higher Education (Private Four Year)
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Maryland has 200+ higher education facilities located throughout the entire State.... -
2019 Cartographic Boundary Shapefile, Current Subbarrio for Puerto Rico, 1:500,000
The 2019 cartographic boundary KMLs are simplified representations of selected geographic areas from the U.S. Census Bureau's Master Address File / Topologically Integrated... -
MD iMAP: Maryland Archived Submerged Aquatic Vegetation 2011
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The 2011 Chesapeake Bay SAV Coverage was mapped from 1:24 - 000 black and white aerial... -
MD iMAP: Maryland Political Boundaries - State Boundary
This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. The Maryland county boundaries were built using the USGS Topo Quads - county boundaries from... -
MD iMAP: Maryland Floodplain - Preliminary FEMA Floodplain
This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. This layer offers the anticipated floodplain boundaries however - the data shown are in the... -
MD iMAP: Maryland Protected Lands - Private Conservation Lands
This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. The Private Conservation data layer is a collection of properties that are protected from... -
MD iMAP: Maryland US National Grid Zone 18S - US National Grid Zone 18S (100000m)
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This layer is the MGRS 100,000m grid that covers Zone 18S which covers part of... -
MD iMAP: Maryland Sport Venues - Kayaking
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... -
MD iMAP: Maryland Welcome and Visitor Centers - Other Welcome and Visitor Centers
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Maryland has numerous welcome centers and rest areas at major tourist locations within... -
MD iMAP: Maryland Archived Submerged Aquatic Vegetation 1999
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...