Sources of free orthoimagery

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Revision as of 00:21, 30 March 2005

Progressland went through most of the sites listed at the University of Arkansas Libraries page and came up with a list of pages with freely downloadable orthoimagery with varying resolution from various years.

ARKANSAS


City of Fayetteville, Arkansas - G.I.S. City coverage, BW, early 2000, ~1 foot resolution, GeoTIFF

GeoStor - On-Line Mapping NW Arkansas Orthophotography, Color 2004, GeoTIFF or MrSID, Pulaski County DigitalGlobe Orthophotography, 2004, GeoTIFF

Spatial Analysis Laboratory - Natural State Digital Database Caroll County Aerial Photography - BW, 1 foot resolution, MrSID

CALIFORNIA


Napa County GIS Free registration required to download 04/2002 1-foot, color orthophotos of Napa County, MrSid

COLORADO


City of Fort Collins 1999 & 2002, 1/2 foot, color, MrSID

CONNECTICUT


MAGIC Geo-Spatial Data Resources 1998 BW Hartford Metropolitan area, MrSID

MAGIC Geo-Spatial Data Resources 1995 BW Digital Ortho Quads (CT State Plane), MrSID

I imagine this is really cool, but it didn't work for me: 1934 Fairchild Aerial Survey The entire state, scanned and georeferenced!

DELAWARE


Delaware Geological Survey "Georeferenced Delaware Hundreds Map Images From the Pomeroy and Beers Atlas 1868", GeoTIFF

http://www.udel.edu/dgs/dgsdata/GeoGIS.html Geologic maps, limited state coverage, GeoTIFF

University of Delaware Spatial Analysis 1997 DOQs (State of Delaware), 5-meter, JPEG (with ArcView World File)

http://datamil.delaware.gov/wmsconnector/c...getcapabilities April 2002 0.25 meter color infrared

FLORIDA


Department of Environmental Protection DOQQs from 1995, 1999 and 2004

Manatee County GIS 2003 1-foot color, MrSID

Lake County 1941, 1998, 2002, 2004

HAWAII


ftp://gisftp.hicentral.com/AirPhotoImages/ Honolulu and some Oahu coastline (MrSID/JPEG)

ILLINOIS


Illinois Natural Resources Geospatial Data Clearinghouse 2000 Des Plaines River Watershed, MrSID, BW

IOWA


Iowa Geographic Map Server 2004 color, 2-meter USDA National Agriculture Imagery Program (NAIP)

KANSAS


Sedgwick County, Kansas Geographic Information Services 1997 BW GeoTIFF, 2000/2003 MrSID, color

MAINE


Maine GIS Data Catalog Spring 2003 1- and 2-foot color, MrSID for southwest Maine; May 2003 1/2 foot color, MrSID for Fort Fairfield; April 2001 1/2 foot color, MrSID for Cumberland County and part of Androscoggin County

MINNESOTA


The DNR Data Deli 2002, 2003-04 Farm Services Administration color ECW

MONTANA


Montana State Library Natural Resource Information System 1-foot color, MrSID of various cities in Montana

City of Missoula 1/2-foot color, MrSID

NEBRASKA


Nebraska FSA Rectified Digital Imagery http://www.dnr.state.ne.us/databank/fsa03.html July-August 2003 US Farm Agency color, 1-meter, JPEG http://www.dnr.state.ne.us/databank/fsa.html July-August 2001 US Farm Agency color, 2-meter, JPEG

Lancaster County High Resolution Digital Ortho Imagery 2002 Lincoln/Lancaster County color, 0.3-meter, JPEG

NEW JERSEY


New Jersey Image Warehouse 2002 1-foot infrared, MrSID for entire state

NEW MEXICO


Bernalillo County 1996, 1999, 2001, 2002, 2004 MrSid, color (haven't investigated all the folders)

NORTH CAROLINA


Wake County 1999 color & BW MrSID

NORTH DAKOTA


North Dakota Geographic Information Systems City of Bismarck April 25, 2001, 1/2 foot BW MrSID City of Mandan April 2001 1/2 foot BW MrSID NAIP 2003 1-meter, color MrSID

OKLAHOMA


2003 NAIP Air Photo Images Statewide color, MrSID

OREGON


City of Corvallis 1999 GeoTIFF, color

PENNSYLVANIA


South-Central South-central Pennsylvania 2003, MrSID, color, 2-foot

UTAH


Utah Automated Geographic Reference Center 2003 2-meter color MrSID, 2004 1-meter color MrSID

WEST VIRGINIA


West Virginia State GIS Technical Center Spring 2003 statewide 2-foot, color, MrSID

Hopefully someone can use this information for something. smile.gif

-Jason

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