Alberta GeoData

return to Alberta Chapter

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DLS data

• From the Fed Govt:
  • Reference Grids dataset (includes DLS to Section level): http://geopub.nrcan.gc.ca/publist_e.php?term=REFERENCE+GRIDS&_m=3&_w=on

• Alberta:
  • http://www.altalis.com/prod_prop_ats.html (click on Sample tab to download corner coordinate list)

• B.C.: ?

• Saskatchewan Twps (requires registration(free)):
  • https://www.geosask.ca/Portal/ (go to the Pre-packaged Data Gallery)

• Manitoba (requires registration(free)):
  • http://mli2.gov.mb.ca/ (go to Quarter Section Grids)

As always, review the license agreements before using...

Digital Elevation Models

• 1 Degree SRTM tiles:
  • http://dds.cr.usgs.gov/srtm/version2_1/SRTM3/North_America/
  • browse upwards for a description of the data
  • the file names are in degree, N for North and W for West - hence Calgary would be something like N51W114
  • to use it in a GIS that can read bil files (e.g. MapWindow GIS) rename the *.hgt file to *.bil and create a header (*.hdr) file (see the one pdf document for use in ArcInfo on that)

World Wide GeoData for Map Making

• Natural Earth Data - small scale data prepared for map scales of 1:10m, 1:50m, 1:110m (the topography layer looks really beautiful)

• OpenStreetMap Data of Canada - very detailed... probably needs generalization for applications

• Digital Chart of the World - I think the scale is somewhat between 1:50k-1:100k. The data may also be not the newest, but its free!