Official Sources of Mapping Information

by **jasonm128** » Mon Nov 28, 2011 11:30 pm

Massachusetts
=============
Official state transportation map:
http://www.massdot.state.ma.us/highway/ ... onMap.aspx

City of Cambridge, MA:
http://www.cambridgema.gov/GIS/FindMapA ... %2FAtlases
Best street reference I've found so far is the zoning map:
http://www.cambridgema.gov/cdd/cp/zng/z ... p_9600.pdf

Denver, CO
============
Precompiled (PDF) maps:
http://www.denvergov.org/maps/category/downloads

Interactive GIS data browser (very difficult to find):
http://www.denvergov.org/denvermaps/rep ... &cat=ccust

by **jenncard** » Thu Feb 16, 2012 7:59 pm

Here. Wiki. Now.
http://www.waze.com/wiki/index.php/How_ ... nformation

by **jmp316** » Tue Feb 12, 2013 4:42 am

Great idea. As an FYI, the Illinois link sent in the original post is very old and should not be used to gather current information on streets.

by **jondrush** » Mon Nov 28, 2011 5:28 pm

I'd like to start a stickied thread that will provide new editors a list of official sources of mapping information from their state governments. Please provide any resources you know of and I will edit this post as I get time. I'd prefer sources that do not require separate software to be downloaded beyond PDF readers and browser plug-ins. Unofficial sources can be listed too, but many of them are mash-ups and unstable or unreliable.

Alabama
Alabama
Alaska
Arizona
Arkansas
---Statewide Interactive Map

California
Colorado
Connecticut
Delaware
District of Columbia
Florida
Georgia
Hawaii
Idaho
Illinois
---County, City and Township Maps

Indiana
---Statewide Interactive Map
---Statewide Map

Iowa
---County and City Maps

Kansas
---County Maps
---City Maps

Kentucky
---Statewide Interactive Map

Louisiana
Maine
Maryland
---Grid maps
---Incorporated town maps
---Interactive map

Massachusetts
---Statewide map

Michigan
---Statewide Interactive Map

Minnesota
Mississippi
---Statewide Interactive Map

Missouri
---County Maps

Montana
Nebraska
---Statewide Map

Nevada
New Hampshire
New Jersey
---County maps

New Mexico
New York
---NYS Orthos Online (bookmarklet available in the Waze Wiki)

North Carolina
North Dakota
---Statewide Interactive Map

Ohio
Oklahoma
Oregon
Pennsylvania
---County Maps
---Municipal Maps
---Many other types of maps

Rhode Island
South Carolina
South Dakota
---Statewide Interactive Map

Tennessee
Texas
Utah
Vermont
Virginia
Washington
West Virginia
Wisconsin
Wyoming
---Statewide Map Requires downloads, provided by University of Wyoming

by **jondrush** » Tue Nov 29, 2011 7:07 pm

Yes, I'm trying to avoid third party vendors or viewers so we don't run afoul of any licensing issues. I know there are free GIS data viewers out there, but the one's I've looked at seem scammy or malware-like.

by **jondrush** » Mon Feb 20, 2012 5:56 pm

jenncard wrote:Here. Wiki. Now.
http://www.waze.com/wiki/index.php/How_ ... nformation

Dang-it Jenn, now I need to get to work . . .

by **jwriddle** » Sun Jul 14, 2013 4:41 pm

mwhead2 wrote:Georgia
http://www.dot.state.ga.us/maps/Pages/default.aspx

The above URL for Georgia Transportation Maps has changed to the following:

http://www.dot.ga.gov/informationcenter/maps/Pages/default.aspx

Main Georgia DOT Website
http://www.dot.ga.gov/Pages/default.aspx

Georgia Navigator Map (LIVE)
http://www.511ga.org/

Georgia Travel Info -- including Travel Alerts; Road Closures, etc.
http://www.dot.ga.gov/travelingingeorgia/Pages/TravelInfo.aspx

Additional GIS Data for Georgia
Georgia State University: http://research.library.gsu.edu/content.php?pid=178923&sid=2129632

by **jwriddle** » Mon Jul 15, 2013 7:41 pm

I'll go ahead and do so since the "Georgia" wiki page is currently blank. Thanks.

by **littlestlou** » Wed Aug 08, 2012 1:24 am

North Texas (Dallas/Fort Worth and Suburbs)

www.dfwmaps.com (offered through North Central Texas Council of Governments)

by **mapcat** » Tue Nov 29, 2011 1:54 am

Great idea. Here are a few I've used in the past. Some are not compatible with Chrome.

Arkansas: GeoStor Viewer (statewide GIS/aerial imagery)
Illinois: General Highway Maps (b/w city and county map .pdfs, some very old)
Indiana: IndianaMap (statewide GIS/aerial imagery)
Indiana: State Transportation Map (.pdf of free tourist map)
Iowa: City and County maps (.pdfs of DOT-produced street maps, generally very current)
Kansas: County Maps and City Maps (.pdfs and .jpgs)
Kentucky: The Commonwealth Map (statewide GIS/aerial imagery) (ESRI)
Michigan: Michigan PR Finder (Physical Road finder: statewide GIS & aerial imagery)
Mississippi: Mississippi Geospatial Clearinghouse (statewide GIS/aerial imagery) (ESRI)
Missouri: County Maps (.pdfs of every county road map in the state)
Nebraska: Nebraska Imagery Lookup Map (statewide GIS/aerial imagery
Nebraska: State Highway Map (.pdf of free tourist map)
North Dakota: ND Hub Explorer (statewide GIS/aerial imagery)
Oklahoma: Oklahoma DEQ Data Viewer (statewide GIS/aerial imagery)
South Dakota: SDDOT Viewer (statewide GIS/aerial imagery) (ESRI)
West Virginia: Base Map Viewer (statewide GIS/aerial imagery)
Wyoming: WyGISC Data Server (statewide imagery; addl info via download)

Nationwide: US Census Bureau maps of all counties and incorporated places, listed by state (usually not as accurate as the above)
Nationwide: Beacon (approx 200 city/county local gov't GIS linked through vendor's site; mostly from midwestern states)

Many more exist for individual cities/counties if you desire to start another list. Actually, it would be easier for people to just search for "[cityname] GIS" and go from there.