With the vague possibility that some major British collections
(national, university [receding at an alarming rate of
dispersal/destruction], or special) of cartographic materials do not
subscribe to 'MAPS-L', but may wish to have some ready-made
'statistics', I fwd a 'count' figure from an ongoing discussion on
United States Geological [i.e topo] Survey maps.
Francis Herbert (ex-RGS/IBG Curator of Maps, including thousands of such
USGS maps from 1880s onwards)
-----Original Message-----
From: Maps, Air Photo & GIS Forum [mailto:[log in to unmask]] On
Behalf Of Angie Cope
Sent: 07 January 2010 21:45
To: [log in to unmask]
Subject: Re: count of usgs topos
-------- Original Message --------
Subject: RE: count of usgs topos
Date: Thu, 7 Jan 2010 15:07:22 -0600
From: Chris Winters <[log in to unmask]>
To: Maps, Air Photo & GIS Forum <[log in to unmask]>
References: <[log in to unmask]>
A survey of the entire Collection I took a few years ago suggested that
there were very roughly 85,000 7.5 minute sheets at the University of
Chicago Map Collection. We theoretically haven't keep duplicates (except
a few dozen of the Chicago area), but we have kept every edition and
even every new printing in some cases. The U of C's 7.5 minute sheets
include published orthophotomaps (several hundred?) and a small number
of perhaps specially prepared editions without a forest layer or even
without roads and buildings layers (but there are only a few sheets of
the latter type).
I don't know how this compares to other large, theoretically "complete"
collections.
Chris Winters
University of Chicago Library
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