Re: SOT 7.5' topo scans at Archive.org
- From: PatOConnell <gypkap.figureitout@xxxxxxxxx>
- Date: Thu, 21 Feb 2008 07:29:40 -0600
robcar wrote:
On Feb 20, 8:45 am, e...@xxxxxxxxxxxx wrote:On Feb 20, 2:38 am, robcar <robc...@xxxxxxx> wrote:
On Feb 18, 1:13 pm, e...@xxxxxxxxxxxx wrote:Well, how much would you pay for that service? There are lots ofMarc -Now, when will all of the historic editions of each 7.5 minute quad
Free downloads of full-sheet images aren't new, either. They've been
available from the US Department of Agriculture for several years, and
their collection is more complete and up-to-date than the archive.org
version (which has a lot of maps, but is certainly not the "entire
maps for the whole series nationwide"). The topo maps are only one of
many free datasets that can be searched for and downloaded at the NRCS
Data Gateway site, athttp://datagateway.nrcs.usda.gov
- Ed
Ed McNierney
TopoZoneMap Guy
across the country be available on the internet? I still have to
trudge to the nearest university map collection when I do my research
on the history of highway routings. Sure would be nice to be able to
do it all from my computer....
people interested in historic topos, but acquiring them and scanning
them is a very expensive proposition. I don't know of anyone who
thinks that it's economically feasible to spend that much money to set
up something that perhaps a lot of people want but that (we think)
very few people would actually pay for. Just as a ballpark figure,
even if you acquired all the map sheets for free you would probably
spend around half a million dollars just to get high-quality,
georeferenced scans made.
- Ed- Hide quoted text -
- Show quoted text -
I don't doubt that it's expensive. I'd be willing to pay something
like a hundred bucks/year subscription fee for it, but don't know how
many others would.
Seems to me it is something that USGS should do as a public service at
some point. But I'm sure it's not super high on their list. They
MUST (translate that as "better") have some sort of project to
digitize all of their historic topos simply to preserve the
information for their in-house historical archives, even if they don't
ever make them available to the public via the net. It would be a
dereliction of duty for them not to.
Many map repositories are just that, places where old maps are stored in drawers. I've been to the New Mexico map repository, and that's all it was. There were no large format scanners either, though you could copy an 11 by 17 inch part of a map at 10 cents a page (probably more now, it's been awhile), black and white.
On the other hand, The University of Nevada (Reno) has color scans available over the Internet of the current topo maps for Nevada. I think those topos are free to download (no I don't have the URL, that PC died recently), but I don't know if older quads are available.
.
- References:
- SOT 7.5' topo scans at Archive.org
- From: Marc Fannin
- Re: SOT 7.5' topo scans at Archive.org
- From: ed
- Re: SOT 7.5' topo scans at Archive.org
- From: robcar
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- From: ed
- Re: SOT 7.5' topo scans at Archive.org
- From: robcar
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