Wednesday, April 23, 2008

Grab the 2007 TIGER/Line Shapefiles from the Census Bureau

I see that some of the free "data flogging" websites are now flogging the free 2007 TIGER/Line files (SHP format) for $100+ bucks! OR.... you can always simply go to http://www.census.gov/geo/www/tiger/tgrshp2007/tgrshp2007.html for your self and take a few minutes to download these data yourself - sounds like a no-brainer to me!

About the data... The 2007 TIGER/Line Shapefiles contain current geographic areas (boundaries of governmental units as of January 1, 2007) and Census 2000 vintage geography. The shapefiles also contain some additional post January 1, 2007 feature updates reported in the Boundary and Annexation Survey (BAS).

Download the 2007 Tiger/Line SHP files HERE
Share/Bookmark

Thursday, April 17, 2008

EastView Cartographics - a source of International GIS data

This data store isn't offering up free data, however, it is a fine commercial stopping point for those in search of hard to find International data products (China, Syria, Phillipines, and more). See the following:
Syria Geological Maps 1:200,000
SYRIA 1:200K Geological Maps/Syrian Arab Republic, Ministry of Industry, Department of Geological and Mineral Research; 1963. 19 Total Sheets, Contours 20m


Syria Geological Maps 1:50,000
SYRIA 1:50K Geological Maps/Ministry of Petroleum and Mineral Resources, Syrian Arab Republic, 1978-1996.


Topographic Maps of Madagascar (1:50,000)

Thematic Maps of Belarus

Albania 1:25,000 Scale Topographic Mapping
Albania 1:25,000 (Republika Popullore Socialiste e Shqiperise 1:25,000) / Institutin Topografik te Ushtrise. Tirane : ITU. Contour interval: 10m. 6 colors. 1959-1990, 45x47cm.


Hong Kong 1:20,000 Scale Topographic Mapping
Hong Kong 1:20,000 (HM20C Series). Hong Kong Land Development, 1992 -7. 16 total sheets, contours interval 20m, UTM projection, WGS84 Datum


Hong Kong 1:50,000 Scale Topographic Mapping

Philippines 1:250,000 Scale Topographic Mapping
P.C.G.S. 1:250,000 (S-2500) / National Mapping & Resource Information Authority; Manila, Philippines, 1972-1999. 55 total sheets, 5 col., contours 100m, Transverse Mercator Projection, Clarke Spheroid 1866 Luzon Datum, 73X57 cm


Philippines 1:5,000 Scale Topographic Mapping
Philippines 1:5,000 / National Mapping & Resource Information Authority.


French Polynesia Topographic Maps (Iles des Tuamotu)

Share/Bookmark

Saturday, April 12, 2008

Free Canadian Imagery from Geogratis

Heads up, here's a link to the ftp site from Geogratis where you can download a ton of data - Landsat 7, Rdarsat, Seasat, NOAA data and much more... enjoy http://geogratis.cgdi.gc.ca/download/
Share/Bookmark

Wednesday, April 09, 2008

A cool historical aerials site

A nice data tip comes our way from LizardTech a really cool historical aerials site hosted by NETR online (A Division of National Environmental Title Research, LLC). With the help of GeoExpress and Express Server NETR was able to publish aerials showing off different locations in the U.S. Some of the locations have data from several different years going back as far as the 1950s, so you can see the difference at any given location over time. See http://www.historicaerials.com
Share/Bookmark

Wednesday, April 02, 2008

hold on before you buy that free data

A tip... if your considering buying free, public data from a commercial data whore like the datadepot or other... wait a minute! Do you really know what your getting? Also, before you buy, blast provide a comment or email me asking for a tip where you can get the same data for free... I'm glad to provide you with a tip
Share/Bookmark

raster nautical charts overlaid on Google maps

This is cool from NOAA... view raster nautical charts overlaid on Google maps... nice! See http://demo.geogarage.com/noaa/
Share/Bookmark

Tuesday, April 01, 2008

Strictly data?

Come on ESRI Canada webpage developer... you can do better than this!
Share/Bookmark