[OSM-newbies] Where is the line between "facts" and "creative works"?

[Eric Ladner]

my understanding is that government produced GIS data is public and
not subject to copyright (since, actually you're the one that helped
pay for it, it's partially yours, too).

Published maps are another story.  i'd stick to USGS data, government
GIS data and other public sources otherwise you risk tainting
openstreetmap data with copyrighted material.

Local knowledge is another source, too.  Ask folks what they think the
trail is called.  Locals usually know better than any map, anyway, and
you might find out some interesting history, too, depending on who you
ask.  ;)

On Thu, Sep 25, 2008 at 2:45 PM, David Carmean <dlc at halibut.com> wrote:
>
> OK, say I go wandering some recreational trails with my GPS.  Some of them are
> well-marked, at the trailheads and along the way.  Others are not so well-marked, but
> are nonetheless official trails with names, etc.  For the latter, info is available
> in published maps and local government-produced GIS data.
>
> How do we obtain the trail names and other data?  Why is copying the name of the
> trail from the physical sign different than copying the name from a map depiction?
> From the GIS shapefile?
>
> Same question applies if I trace the trails using public domain aerial imagery
> (I'm fortunate to live in a coverage area for USGS Urban orthophotos).
>
> Thanks.
>
>
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-- 
Eric Ladner