United States

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WWW

Alaska Southeast GIS Library http://seakgis.alaska.edu/

Data.Gov http://www.data.gov/

North American Environmental Atlas http://www.cec.org/Page.asp?PageID=1226&SiteNodeID=496

Lata Maps http://www.latamaps.com/Telecom_Maps/telecom_maps.html

National Land Cover Database http://www.mrlc.gov/finddata.php

Land Cover Trends USGS http://landcovertrends.usgs.gov/index.html

US Census Geography Data http://www.census.gov/geo/maps-data/

USGS Data http://www.usgs.gov/pubprod/data.html#data

USGS Phenology http://phenology.cr.usgs.gov/

USGS Energy Vision http://energy.usgs.gov/Tools/EnVisionSplash.aspx

USGS Historical Topographic Maps http://nationalmap.gov/historical/

Maryland Department of Planning: Interactive Maps http://planning.maryland.gov/OurProducts/iMaps.shtml and Downloadable Geodata http://planning.maryland.gov/OurProducts/downloadFiles.shtml

MODIS Irrigated Agriculture dataset http://earlywarning.usgs.gov/USirrigation/

National Geophysical Data Center http://www.ngdc.noaa.gov/nndc/struts/results?op_2=ne&v_2=STORE&t=102759&s=15&d=10,15,11

Snow Data Assimilation System http://nsidc.org/data/docs/noaa/g02158_snodas_snow_cover_model/index.html

EPA Environmental Dataset Gateway https://edg.epa.gov/metadata/catalog/main/home.page

Bird and Mammal Species Distribution Grids http://sedac.ciesin.columbia.edu/data/collection/species-v1

Wetlands Data http://www.fws.gov/wetlands/Data/Data-Download.html

Geologic Map http://mrdata.usgs.gov/geology/us/

Hydrography Data http://nhd.usgs.gov/data.html

Water Quality Assessment http://cida.usgs.gov/nawqa_public/apex/f?p=136:1:0

WMS

Office of Coast Survey http://www.nauticalcharts.noaa.gov/csdl/web_mapping.html


WFS

The National Map http://nationalmap.gov/small_scale/infodocs/webservices.html

Indiana Geologic Map http://mrdata.usgs.gov/services/in?service=WFS&version=1.0.0&request=GetCapabilities&