[Geowanking] Elevation data for a Road Network

[John Morris]

The USGS has seamless DEMs which can be freely downloaded. They also have a
web service which, given either a single point (GET) or a series of points
(POST) will return the corresponding elevations. 

 

On Fri, Jan 16, 2009 at 2:59 PM, Brian Hamlin <maplabs at light42.com> wrote:

It occurred to me today that a fellow on the #postgis IRC channel had
elevation data under his road network in Postgres/PostGIS. (I think it was N
America)

Anyone know the source(s) of such a thing?

 

 

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