Doyle's GIS Links Web Page

Sorry but I donít update this page the way I should but below are some links to various states.Also here are some handy links for all the USA:

         Google Maps with USGS Topographic maps overlay It also provides a link where the geo-enabled PDFs of each quad can be downloaded from the USGS

         Earth Explorer by USGS (great for findinghistorical aerials)

         USDA GIS Ė Lot of free data including county wide topo and aerials

 

 

Alabama

Alaska

Arizona 

Arkansas

California

Colorado

Connecticut

Delaware

Florida

Georgia

Hawaii
Idaho
Illinois
Indiana
Iowa
Kansas
Kentucky

Louisiana
Maine
Maryland

Massachusetts
Michigan
Minnesota
Mississippi
Missouri
Montana
Nebraska
Nevada
New Hampshire
New Jersey

New Mexico

New York

North Carolina
North Dakota
Ohio
Oklahoma
Oregon
Pennsylvania
Rhode Island
South Carolina

South Dakota
Tennessee
Texas
Utah
Vermont
Virginia
Washington
West Virginia
Wisconsin
Wyoming

Ways Improve GPS Accuracy - A list of methods to help improve GPS location accuracy.

 

I also have links about programs / software to view these files and GPS links, and GPS programsTo view the links for a state click on the state name below.  Also check Misc GIS Links for various links for all of the USA.   

 

Looking for an antenna or cable for your gps?  Check out Gilsson.com and GPSgeek.com

 

If you are looking for a GREAT program to work with GIS data and to make professional maps take a look at GIS ManifoldAlso there is a great user group you can get help from.  Also Cornell University has prepared a 124 page document comparing Manifold System 6.00 to ESRI's ArcGIS 8 and how to do several common task Right Click Here and select "Save Target as"  Keep in mind this file is over 4 MBs. 

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Keywords: DRGs, topographic maps, DOQQs, aerial photographs, and other GIS links for the USA