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Subject:
MAPS-L: U.S. county-level relief data
From:
"Angie Cope, AGSL" <[log in to unmask]>
Reply To:
Maps, Air Photo & Geospatial Systems Forum
Date:
Thu, 22 Dec 2005 08:28:23 -0600
Content-Type:
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Subject:        Re: MAPS-L: U.S. county-level relief data
Date:   Wed, 21 Dec 2005
From:   James R. Carter <[log in to unmask]>
To:     Maps, Air Photo & Geospatial Systems Forum <[log in to unmask]>



I would be very surprised if anyone has compiled such data for the 3,000
plus counties of the U.S.   First I can see no reason for compilng such
data other than to get a few extremes so someone can brag about their
county being low, high, flat, or rugged.  Second, there is great variation
in the size of counties across the country which would make the comparison
of any numbers rather meaningless.  Third, what are you going to do those
places that do not have counties, per se, such as Alaska, Connecticut,
Virginia?

These criteria might have meaning relative to watersheds, but I can see no
value for political entities such as counties.  I hope this is not someone
who wants to try to relate a few physical parameters to social or political
values to explain human behavior.

Jim Carter

At  12/21/2005, you wrote:
>Subject:        U.S. county-level relief data
>Date:   Wed, 21 Dec 2005
>From:   Christopher Winters <[log in to unmask]>
>To:     Maps, Air Photo & Geospatial Systems Forum <[log in to unmask]>

>A patron here is looking for a county-level data set for the U.S. that
>contains
>
>[1] mean altitude
>[2] highest point
>[3] lowest point
>[4] percent area covered by swamp (wetland)
>
>This (or the first three anyway) ought to be easy, but ...!
>Any help would be greatly appreciated--many thanks.
>
>Chris Winters
>Bibliographer for Maps
>University of Chicago Library

---------------------------------------------------------------------
Dr. James R. "Jim" Carter, Emeritus Professor
Geography-Geology Department
Illinois State University, Normal, IL 61790-4400 USA
                      -- http://www.ilstu.edu/~jrcarter --
tel: (309) 438-2833                                 fax: (309) 438-5310
                               [log in to unmask]
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