Free GIS Data for GIS Users:

Please use this forum to discuss all aspects of GIS programs, mapping, boundary files, data manipulation and data sharing for the Cheshire region.

Free GIS Data for GIS Users:

Postby SteveMcBill on Mon Apr 06, 2009 9:59 am

FREE GIS Data for GIS Users:

The US Geographical Society (USGS) now offers all users the entire Landsat 1-5 and 7 archive data at no charge using a standard data product recipe. "The opening of the Landsat archive to free, web-based access is like giving a library card for the world's best library of Earth conditions to everyone in the world."

Visit below for full details:


Download SRTM 90m Digital Elevation Data (Version 4.2) The SRTM Data now available from CSI-CGIAR SRTM Data portal. This is Free, and all the data has been upgraded to version 4. This latest version represents a significant improvement from previous versions, using new interpolation algorithms and better auxiliary DEMs.

For quick & easy data downloads, this portal has a nice user-friendly web interface which provides users three flexible options to choose, in order to selecting multiple tiles for downloading.

1. Multiple tile selection by clicking on tiles
2. Drag the mouse-point on top of the world map and mark & select the tiles
3. or, enter lat-long input coordinates.

In addition, you can switch between their different hosting servers, to select either HTTP or FTP downloads.

Visit below for full details:

Steve :)
Posts: 832
Joined: Thu Jul 31, 2008 9:15 am
Location: Runcorn, Cheshire

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