Free GIS Datasets

OpenStreetMap

Data Sources

http://download.geofabrik.de/index.html

Products

PostGIS Database (imposm)

National Elevation Dataset (USGS)

Data Sources

1/3s tiles, ArcGrid: ftp://rockyftp.cr.usgs.gov/vdelivery/Datasets/Staged/NED/13/ArcGrid/

Products

Contours

gdal_contour -i 15.24 -a ele_m n44w075.tif n44w075c50f.shp
Feet Meters
10 3.048
20 6.096
25 7.62
50 15.24
100 30.48

Shaded Relief

gdaldem hillshade -s 111120 n44w075.tif n44w075hs.tif

-- StephenCavilia - 11 Nov 2015
Topic revision: r4 - 12 Nov 2015, StephenCavilia
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