-------- Original Message --------
Subject: RE: Use of hachures for describing relief on map]]
Date: Mon, 7 Jun 2004 15:44:30 -0400
From: HelenJane Armstrong <[log in to unmask]>


------------------
Hi Brain

What Phil Hoehn and others have said about the use of hachures to represent
different types of physical terrain is consistent with some of the early
Florida maps.  Hachures have even been used to represent hammocks in the
Everglades where the relief difference is little over 5 feet.  Also hachures
have been used both correctly and incorrectly to represent sinkhole
depressions.  This is especially true of the USGS topographic maps of
Florida from the 1890's. On the earlier maps both hachures and form lines
were used to show slight differences in elevation change. Sometimes the
relief has been exaggerated to make a point.  On a few of the earlier maps
small riverbeds look like centipedes.

While horizontal hachures do occur, it is not a common practice for the
Everglades and other swamps in Florida.  When we are cataloging antique maps
of Florida we have found that these usually are swamp symbols and not
hachures.

If you have a specific question about cataloging a Florida map, please feel
free to contact me directly.  A number of the Florida maps are cataloged but
not on OCLC.

By the way, if you are cataloging the USGS 1890's topographic maps of
Florida, these have been scanned and cataloged as part of the PALMM project.

Let me know if I can help
Helen

HelenJane Armstrong PhD
Head, Map & Imagery Library
George Smathers Libraries
University of Florida
PO Box 117011
Gainesville, FL 7011



-----Original Message-----
From: Johnnie D. Sutherland [mailto:[log in to unmask]]
Sent: Friday, June 04, 2004 3:56 PM
To: [log in to unmask]
Subject: Re: Use of hachures fordescribing relief on map]]


-------- Original Message --------
Subject: Re: Use of hachures fordescribing relief on map]
Date: Thu, 3 Jun 2004 19:45:33 GMT
From: <[log in to unmask]>


------------------

Look in "Cartographic Materials: a Manual of Interpretation for AACR2".
   Fig. 35 between p. 7-6 and 7-7 shows an illustration of hachures
(along with other methods of showing relief).  Hachures are not limited
just to mountains but to show relief or slope for less dramatic features
as well, such as hills, gullies, etc.

Phil Hoehn, Map Librarian
San Francisco -- [log in to unmask]
-----------------------------------
Contractor for David Rumsey Collection:
http://www.davidrumsey.com

-- "Johnnie D. Sutherland" <[log in to unmask]> wrote:
-------- Original Message --------
Subject: Use of hachures fordescribing relief on map
Date: Wed, 2 Jun 2004 16:36:07 -0400
From: Falato, Brian <[log in to unmask]>


-------------------
I'm cataloging pre-1900 maps from our Special Collections Dept. at the
University of South Florida.  A good proportion of these maps naturally
feature Florida as the main point of interest.  In looking on OCLC, I've
seen some records for Florida maps that say "relief shown by hachures."
    I thought hachures were used to depict mountainous terrain.  We don't
have mountains in Florida, of course. (Our highest point is under 350
feet!)  So I'm wondering if hachures can be used to describe the symbols
designating swamp or marsh land, such as the Everglades.  If hachures is
being used incorrectly here, what would be the term to describe the
symbols used on maps to depict the Everglades, for instance?

Brian Falato
Serials/Maps Cataloger
University of South Florida
Tampa Campus Library
Tampa, FL 33620
(813)974-1772
[log in to unmask]