Online Maps by Topic
Also see our guides for Aerial Photos & Satellite Imagery, Art & Maps, Geologic Maps, Geospatial Data, Historical Maps, Topographic Maps
- Agriculture
- Demographic
- Environment
- Land Use & Land Cover
- Marine
- Natural Hazards
- Planetary Mapping
- Political
- Recreation
- Transportation
- Weather & Climate
Also see "Land Use & Land Cover"
Agricultural Resources and Environmental Indicators Database and Mapping Tool
(USDA Economic Research Service) 
This database provides access to the latest agricultural data on a
variety of topics, from fertilizer use to angora goats.
CropScape - Cropland Data Layer
(USDA - National Agricultural Statistics Service)
Cropland Data Layers with boundaries by County, Agricultural Statistics District, or State
National Agricultural Statistics Service (USDA)
Charts and Maps by Commodity: Crops and Plants, Livestock and Animals, Economics, Census of Agriculture
National Atlas - Agriculture Map Layer
Make your own map using 2007 Agriculture Census data. (map layer description)
Agriculture and Food Security
(Socioeconomic Data and Applications Center, SEDAC)
Maps: Global Agricultural Lands, Fertilizer and Manure, Climate effects om Food Supply
Environmental Data Explorer
(United Nations Environment Programme)
Display the data as maps, graphs, or tables.
Data categories: Agricultural Production, Fertilizer and Pesticides, Food Supply
GeoNetwork
(Food and Agriculture Organization (FAO) of the United Nations)
"Data presented here include measures of agricultural inputs, outputs, and productivity compiled by the UN's Food and Agriculture Organization." Featured indicators can be viewed as a map, table, or graph.
Featured indicators can be viewed as a map, table, or graph. By Topic: Agriculture & Rural Development
Colorado Thematic Maps (Colorado Department of Local Affairs)
Demographic maps based on Census information
American FactFinder (Census Bureau)
Interactive web tool to access population, economic, geographic, and housing information about the United States. From the search results, you can create a thematic map to compare results geographically.
- Overview and tutorials of features and functions
- Tutorial: Creating thematic maps
- Help Section for Maps
Maps to Print, including 2010 Census Reference, Census Geography (2000 and 1990), 2007 Economic Census Maps, Congressional Districts, Metropolitan Areas, Urban Areas, Population Maps.
Overview of geographic products from the Census Bureau.
National Atlas - "People" Map Layer
Customize your own map in the National Atlas using demographic data.
(United Nations Environment Programme)
Display the data as maps, graphs, or tables.
Data categories: Human Settlement, Population, Private Consumption
National Geographic MapMaker Interactive
Interactive Map, Layers include Human Systems - Populations & Culture
(Socioeconomic Data and Applications Center)
- Gridded Population of the World and the Global Rural-Urban Mapping Project
"The Population Estimation Service is a Web-based service for estimating population totals and related statistics within a user-defined region. It enables users ... to quickly obtain estimates of the number of people residing in specific areas without having to download and analyze large amounts of spatial data."
- Population Density 2000 (SEDAC Map Client)
Interactive Mapping Application
Featured indicators can be viewed as a map, table, or graph. Topics: Education, Gender, Labor & Social Protection, Poverty, Social Development, and Urban Development.
World Data Center For Human Interactions in the Environment (Center for International Earth Science Information Network)
Map Gallery: Population maps
Natural Diversity Information Source
(Colorado Division of Wildlife)
"The NDIS website provides mapping, data, information, and links to similar websites concerning hunting, fishing, wildlife, habitat, and conservation planning issues in Colorado."
Atlas of America's Polluted Waters (EPA)
"The maps in this atlas depict the waters within each sate that do not meet state water quality standards."
Enviromapper for Envirofacts (EPA)
Create custom maps with information about environmental activities that may affect air, water, and land anywhere in the United States.
Enviromapper for SuperFund (EPA)
"Interactive maps and aerial photography to map, display and query National Priorities List (NPL) sites."
Fish and Wildlife
Services Wetlands Mapper
Customized maps of wetlands areas around the nation.
National Atlas - "Environment" Map Layer
Create custom maps: Air Releases, Hazardous Waste, Toxics Release.
National Atlas - "Water" Map Layer
Create custom maps: Aquifers, Dams, Watersheds, Streams and Waterbodies.
TOXMAP: Environmental Health E-Maps (U.S. National Library of Medicine)
"Use Quick Search or click on a map to explore on-site toxic chemical releases and hazardous waste sites from the EPA's Toxics Release Inventory (TRI) and the Superfund National Priorities List (NPL)."
Environmental Data Explorer
(United Nations Environment Programme)
Display the data as maps, graphs, or tables.
Data categories: Environmental Hazards, Freshwater, Protected Areas & Environmental Protection, Rivers & Lakes, Water Consumption
Global Health Observatory (World Health Organization)
Map Gallery: The GHO map gallery includes an extensive list of maps on major health topics, including environmental health.
National Geographic MapMaker Interactive
Interactive Map, Layers include Physical Systems - Water,
Physical Systems - Land,
Environment & Society
Featured indicators can be viewed as a map, table, or graph. Topics: Energy & Mining, Environment, Health
World Data Center for Human Interactions in the Environment (Center for International Earth Science Information Network (CIESIN)
Map topics include: Conservation, Sustainability
Conterminous United States Land Cover 1992 – 200 Meter Resolution (National Atlas)
"Twenty-one classes of land cover, such as deciduous and evergreen forest, shrubland, orchards, cropland, quarries, and water, at a resolution of 200 meters."
North American Land Cover, 2005 - 250 Meters (Commission for Environmental Cooperation)
Nineteen land cover classes were defined using the Land Cover Classification System (LCCS) standard developed by the Food and Agriculture Organization (FAO) of United Nations.
(Produced by the North American Land Change Monitoring System (NALCMS). NALCMS is a collaborative initiative between Canada, Mexico, and the United States to monitor land cover and its change over time.)
North American Land Cover Characteristics - 1 Kilometer Resolution (National Atlas)
There are 25 classes of land cover, including urban and built-up land, cropland and pasture, shrubland, grassland, deciduous and evergreen forest, water, wetlands, and tundra.
(Natural Resources Conservation Service)
Agricultural productivity, cropland, grazing land, irrigation, land cover and use, private forest land, soil erosion, soil quality, water quality, wetlands, and other topics. (This page was formerly known as "State of the Land.")
Environmental Data Explorer
(United Nations Environment Programme)
Display the data as maps, graphs, or tables.
Data categories: Land Use, Vegetation and Land Cover
North American Land Cover Characteristics - 1 Kilometer Resolution (National Atlas)
There are 25 classes of land cover, including urban and built-up land, cropland and pasture, shrubland, grassland, deciduous and evergreen forest, water, wetlands, and tundra.
North American Land Cover, 2005 - 250 Meters (Commission for Environmental Cooperation)
Nineteen land cover classes were defined using the Land Cover Classification System (LCCS) standard developed by the Food and Agriculture Organization (FAO) of United Nations.
(Produced by the North American Land Change Monitoring System (NALCMS). NALCMS is a collaborative initiative between Canada, Mexico, and the United States to monitor land cover and its change over time.)
SEDAC Map Client
(Socioeconomic Data and Applications Center)
Interactive Mapping Application. Map Layer: Land Use (choose from "theme" in top right).
Bureau of Ocean Energy Management: Offshore GIS Data/Maps
Marine boundaries, CSB (U.S. Continental Shelf Boundary) Maps
- Multipurpose Marine Cadastre Map Viewer
"An integrated marine information system that provides authoriatative and regularly updated ocean information, including offshore boundaries, infrastructure, human use, energy potential, and other data sets. The MMC is especially useful to those looking to assess suitability for ocean uses, such as energy siting."
NOAA Office of Coast Survey - GIS & Other Products
Links to NOAA map portals
NOAA Charts for US Waters (NOAA Office of Coast Survey)
View NOAA's 1000+ U.S. coastal and Great Lakes nautical charts that provide up-to-date navigational information to mariners.
NOAA Digital Coast Data Access Viewer
"Provides access to coastal data managed by the NOAA Coastal Services Center, including lidar, land cover, imagery, and benthic data"
NOAA National Geophysical Data Center - Map Viewers
U.S. Bathymetric and fishing maps, Marine geology, Tsunamis
Davey Jones' Locker Treasure Chest of Web Links (Oregon State University)
Links to seafloor mapping and marine/coastal geospatial data
Environmental Data Explorer (United Nations Environment Programme)
Display the data as maps, graphs, or tables.
Data category: Marine & Coastal Areas
NOAA Office of Coast Survey - GIS & Other Products
Links to NOAA map portals, interactive mapping applications, and prepared maps
National Geophysical Data Center - Map Viewers (NOAA )
Bathymetric data, Marine geology, Tsunamis
Online Chart Viewer - Global Chart Coverage (NOAA Office of Coast Survey)
Charts available online for these regions: North America, Western Africa, Mediterranean, Black Sea, Eastern Asia, South Eastern Russia, Phillippines
SEDAC Map Client (Socioeconomic Data and Applications Center)
Interactive Mapping Application. Map Layer: Marine and Coastal (choose from "theme" in top right).
- Maps from the Atlas of the Oceans (requires registration to view maps)
Earthquake Hazards Program (USGS)
National Atlas - "Geology" Map Layer
Creat custom maps: Earthquakes, Landslides, Volcanoes
Natural Hazards Map Viewer
(NOAA National Geophysical Data Center)
Tsunamis, Earthquakes, Volcanoes
Seismic Hazard Maps and Data (USGS)
"Probabilistic and scenario ground-motion hazard maps, input and output data, and documentation"
Environmental Data Explorer
(United Nations Environment Programme)
Display the data as maps, graphs, or tables.
Data category: Environmental Hazards
Earthquake Hazards Program (USGS)
National Geographic MapMaker Interactive
Interactive Map, Layers include
Physical Systems - Land (Earthquakes, Volcanic Eruptions, Plate Tectonics, Surface Elevation)
Seismic Hazard Maps and Data (USGS)
Probabilistic and scenario ground-motion hazard maps, input and output data, and documentation
Astrogeology Science Center (USGS)
Produces planetary maps and cartographic products which reveal topography, geology, topology, image mosaics and more.
"You can view either a map of the Earth showing the day and night regions at this moment, or view the Earth from the Sun, the Moon, the night side of the Earth, above any location on the planet specified by latitude, longitude and altitude, from a satellite in Earth orbit, or above various cities around the globe."
Google Mars
Created in collaboration with NASA researchers at Arizona State University.
Lunar and Planetary Institute (a division of the Universities Space Research Association)
Planets & Moons: Maps (USGS Store)
Records have links to Publications Warehouse to check if item is available online.
Create custom maps
- "Boundaries" Map Layer: Congressional Districts, Counties, Federal Lands, Indian Lands, States, Time Zones
- "Government" Map Layer: Spending, Aid, Voting, Revenues
- "Map Reference" Map Layer: Cities and Towns, Urban Areas
Indian Land Areas Judicially Established 1978
This map of Native American lands "portrays results of cases
before the U.S. Indian Claims Commission or the U.S. Court of Claims
in which an American Indian tribe proved its original tribal occupancy
of a tract within the continental United States."
Perry-Castañeda
Library Electronic Map Collection (University of Texas at Austin)
Scanned maps from the library's collection, plus links to many
other maps on the Web.
State Online Atlases (Western Illinois University)
Links to online state atlases.
Interactive map that allows users to visualize Census geography, including legal and statistical geography as well as the roads, railroads, and water layers in the TIGER database.
e-Atlas of Global Development (World Bank)
"Interactive tool that maps and graphs more than 175 indicators from the World Bank’s development database. The resulting full color maps and graphs can subsequently be exported for sharing and later use."
Perry-Castaeda
Library Electronic Map Collection (University of Texas at Austin)
Scanned maps from the library's collection, plus links to many
other maps on the Web. Covers all parts of the world.
United Nations Cartographic Section
Includes General Maps (more than 100 country and regional maps), Mission Maps (latest deployment and political operations), and Thematic Maps.
Africa - South of the Sahara: SULAIR
An excellent selection of links to current and historical maps of Africa.
Australia: National Library of Australia
Search over 100,000 maps of Australia, held in Australia's libraries, from the earliest mapping to the present
Canada: National Atlas of Canada
Maps that show the physical and cultural geography of Canada. Also includes some historical maps and downloadable
GIS data.
China: State Bureau of Survey & Mapping (in Chinese). Chinese number symbols (to help read scale, etc. on these maps).
Czech Republic: Geographical Bibliography Online
A searchable database with records for geographical documents (articles, books, maps, etc.). Includes links to online content where it exists.
"The maps show the administrative divisions of each country as determined by the national authorities."
An interactive map site with static maps and downloadable GIS data for Great Britain.
Includes topography, hydrography, geology, and much more.
Russia and Former Soviet Union Republics Maps
Links to maps of Russia and FSU countries, regions, and cities available
on the Web.
Spain: Catalonia: Interactive Maps
(Cartografic Institut
of Catalonia)
Interactive Map of Colorado
(Colorado.com, the official web site of Colorado tourism)
"Use this interactive Colorado map to assist in planning your vacation. Map Colorado ski resorts, scenic trains, ski resorts, whitewater-rafting outfitters and other things to see and do here."
National Park
Service Interactive Maps
Dynamic maps that allow you to zoom in and out, measure distances, and
print or save.
CO TRIP (Colorado Department of Transportation)
- Latest Road Conditions and Weather Map
- Live Traffic Speeds and Travel Times Map
National Atlas - Transportation
Create custom maps: Airports, Parkways and Scenic Rivers, Railroads, Roads.
Standardized Precipitation Maps (Colorado Climate Center)
"The Standardized Precipitation Index (SPI) was developed for the purpose of defining and monitoring drought. Among others, the Colorado Climate Center, the Western Regional Climate Center, and the National Drought Mitigation Center use the SPI to monitor current states of drought in the United States."
"The standard by which gardeners and growers can determine which plants are most likely to thrive at a location. The map is based on the average annual minimum winter temperature, divided into 10-degree F zones."
National Atlas - "Climate" Map Layer
Create custom maps: Precipitation, Hazard Events, Hurricanes, Sea Temperature
National Weather Service (NOAA)
Environmental Data Explorer
(United Nations Environment Programme)
Display the data as maps, graphs, or tables.
Data category: Climate
"Includes free download of 53 georeferenced maps and image analysis software."
National Geographic MapMaker Interactive
Interactive Map, Layers include
Physical Systems - Climate
SEDAC Map Client
(Socioeconomic Data and Applications Center)
Map Layer: Climate (choose from "theme" in top right).
Featured indicators can be viewed as a map, table, or graph. By Topic: Climate Change
World Data Center for Human Interactions in the Environment
(Center for International Earth Science Information Network (CIESIN), a center within The Earth Institute at Columbia University)
Relevant maps in map gallery: Climate, Conservation, Poverty, Sustainability
