-------- Original Message --------
Subject: Re: USGS Forest Service Revised Quads]
Date: Mon, 07 Jun 2004 16:52:38 -0400
From: Steve Morris <[log in to unmask]>
Organization: NCSU Libraries



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

More info about the USFS quad sheets may be found at the North Carolina
Geologic Survey topo map site at: http://tinyurl.com/3b8f6  ... the URL was
too long to cut and paste.  Click on the "Single-edition revision" link for
the USFS map details.

Key points are that the interagency agreement allows the USFS to update only
the National Forest land on a quadrangle and that DRG copies were not
routinely produced, so:

"... areas outside the National Forest System lands may not have been
revised and could be significantly older than the printed map date. Users
should note that:

In many cases, map revisions on a topographic map are performed only within
the USFS national forest boundaries;

In certain cases, partial and inconsistent feature revisions are performed
outside the USFS national forest boundary; and

Soft copy (the equivalent of a DRG) may not be as current as the published
paper map."

Some of this information on the NCGS page was summarized from the following
report:

Moore, Larry, 2000, The U.S. Geological Survey's revision program for
7.5-minute topographic maps, in Soller, David R., editor,  Digital Mapping
Techniques '00-Workshop Proceedings, U.S. Geological Survey Open-File Report
00-325, p. 21-26.
http://pubs.usgs.gov/of/of00-325/moore.html

Best regards,

Steve Morris


"Johnnie D. Sutherland" wrote:

> -------- Original Message --------
> Subject: USGS Forest Service Revised Quads
> Date: Fri, 4 Jun 2004 14:39:53 -0400
> From: Weessies, Kathleen <[log in to unmask]>
>
> ------------------
> I am looking for facts and opinions on the USGS 7.5' quads that were
> revised by the U.S. Forest Service.  I have been interfiling them with
> 'regular' USGS quads.  We are now creating cataloging records for state
> sets.  My records are stretching out to include all the photorevised and
> provisional editions of each quad, but I decided to draw the line at the
> 7.5 x 15 and the Forest Service quads.  The 7.5 x 15 are the only USGS
> 1:24,000 quad of a particular place, but for whatever reason I decided
> to catalog them in a different record.
>
> Does anyone have any particular knowledge about the difference between
> the USGS and the Forest Service quads?  Are they indeed a different
> product or simply a little extra shading and pink lines that shouldn't
> bother anyone?  Many quads have other authors such as Corps of
> Engineers, State agencies, etc.  Are the Forest Service quads simply
> another variation or are they truly different?  Does the USGS consider
> them to be part of the set or a different animal?
>
> Kathleen Weessies
> Maps/GIS Librarian
> Michigan State University
> 100 Library W308
> East Lansing, MI  48824
> (517)432-6123 x250

--
Steve Morris
Head of Digital Library Initiatives
North Carolina State University Libraries
Phone: (919) 515-1361  Fax: (919) 513-3553
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