[Geowanking] Historic USGS Topo maps for the US Northeast
nelson at crynwr.com
Wed Jan 23 21:05:30 PST 2008
Derrick Brashear writes:
> On Jan 11, 2008 7:57 PM, Russ Nelson <nelson at crynwr.com> wrote:
> > I have a working DVD burner again, so if anybody wants a *stitched*
> > and *georeferenced* copy of the "Historic" USGS Topo maps which were
> > collected by Chris Marshall, published by the UNH Library, and donated
> > to historic.maptech.com, just ask.
> Are these the ones Richard Utter stitched?
Yes, one and the same. Redistributed with his permission.
Derrick, (while I'm sending you email), check this out:
The AskJeeves imagery at that resolution is the NYSGIS 60cm/pixel
infrared. See the wye? It's quite hard to see using visible imagery.
I've gone to the location, and there's definitely a wye there, but the
infrared makes it obvious. I believe that the wye was used between
1851 and 1886, when the Potsdam & Watertown terminated there.
--my blog is at http://blog.russnelson.com | Software that needs
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