Official Sources of Mapping Information

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Re: Official Sources of Mapping Information

Postby cfreema » Thu Dec 01, 2011 7:23 pm

cfreema wrote:i also found this website here that has extremely good info. i use it all the time and it goes by incorporated cities/towns and zipcodes and unincorporated towns and is useful at getting borders because it provides an overlay over google maps which isn't perfect but is darned close. look at cheverly, maryland and the 20785 zip code and you will see where cheverly is in the zipcode and where hyattsville surrounds cheverly in the same zip, cheverly being an incorporated town that does not occupy the entire zip code. the maps are about midway down the page on the left. it also gives detailed populace info for the nerds in us all.

http://www.city-data.com/




p.s. this is for reference only and should not be integrated as a basemap due to licensing issues. i just use it to look at a line and manually edit the map.
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Re: Official Sources of Mapping Information

Postby ctpoole » Sun Jul 14, 2013 3:17 pm

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Re: Official Sources of Mapping Information

Postby ctpoole » Sat Oct 19, 2013 1:46 pm

Today I discovered this link for Texas. Press Accept on the page to get to the official State highway system designations and projects in map form:

http://www.txdot.gov/inside-txdot/divis ... nning.html
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Re: Official Sources of Mapping Information

Postby cwdurst » Sun Feb 24, 2013 9:15 pm

Another good source of local Massachusetts roads is:

http://maps.massgis.state.ma.us/map_ol/oliver.php

Hint: turn on the "MassDOT Roads Street Names" Data Layer to get all the streets labeled.
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Re: Official Sources of Mapping Information

Postby dbwiddis » Fri Feb 22, 2013 9:33 pm

Clark County (Nevada) GIS Management Office:
http://gisgate.co.clark.nv.us/gismo/gismo.htm
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Re: Official Sources of Mapping Information

Postby DonJ2 » Sat Jul 21, 2012 1:05 pm

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Re: Official Sources of Mapping Information

Postby gettingthere » Thu Dec 01, 2011 5:19 pm

California GIS Map & Information (this site is hosted by a 3rd party but includes a comprehensive list of California GIS sites):

http://www.coordinatedlegal.com/gis.html
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Re: Official Sources of Mapping Information

Postby HandofMadness » Mon Aug 06, 2012 10:53 pm

Caltrans actually uses Google for their map:
http://quickmap.dot.ca.gov/
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Re: Official Sources of Mapping Information

Postby HandofMadness » Mon Aug 06, 2012 11:43 pm

shawndoc wrote:Caltrans actually uses Google for their map:
http://quickmap.dot.ca.gov/


While not for GIS information, it is being used for official Caltrans construction alerts. Not sure if that makes it safe to use or not.
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Re: Official Sources of Mapping Information

Postby HavanaDay » Mon Dec 05, 2011 10:15 pm

A good starting point for North Carolina:

http://www.lib.ncsu.edu/gis/counties.html

Otherwise I just usually type "county name" gis and get the right results in the first few google links.
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