-------- Original Message --------
Subject:        Re: thanks from Tom Lindsey
Date:   Fri, 05 Feb 2010 10:35:24 -0500
From:   Paige Andrew <[log in to unmask]>
To:     Maps, Air Photo, GIS Forum - Map Librarianship
<[log in to unmask]>
References:     <[log in to unmask]>



This harkens to the question, for each collection, of whether or not to
separate out the "special Forest Service editions" if you will from the
rest of the 7.5-minute topos. Some collections chose to do so, we did
not. If using the G-class number though, and if one wishes to have these
sheets file with all other maps of the specific National Forest or
National Grassland involved, by the fact that you change the 4th digit
in the class number to a "2" and then add the geographic area code for
the NF or NG involved (using /Classification Web/ or borrowing from a
record in LC's online catalog), means that these maps will end up being
in a separate area from all of the other 7.5-minute topos for a given
state. I'm sure there have been some creative ways to handle this,
sounds like what has been done on your end Tom is but one way. Good luck
on writing the documentation, been there and still doing that....

Paige

At 09:49 AM 2/5/2010, you wrote:
> -------- Original Message --------
> Subject:        thanks from Tom Lindsey
> Date:   Thu, 4 Feb 2010 17:54:21 -0600
> From:   Lindsey, Thomas K <[log in to unmask]>
> To:
>
>
>
> "Thanks for the information.  I have to doublecheck an Ohio library
> catalog again, but I think that I have found one that does.
>
> The system became complicated in 1999 when a cutter code for national
> forest or national grassland was inserted in front of the quadrangle
> number on any map that has a part of a national forest or national
> grassland.    I have compiled a list of about 100  Cutter   codes.  It
> makes filing "very interesting" if you file by including the Cutter
> code, instead of ignoring it.
>
> Here is a record from our catalog:
>
> http://pulse.uta.edu/vwebv/holdingsInfo?bibId=1293634
>
> I am trying to write a guide that explains how to find a map in our
> drawers.  It is not an easy task.    thanks for your help.  Tom
> Lindsey U T Arlington Library"
> ________________________________________
> From: Angie Cope [[log in to unmask]]
> Sent: Thursday, February 04, 2010 11:44 AM
> To: Maps-L; Lindsey, Thomas K
> Subject: Re: Inquiry from government documents librarian about
> classification systems used for USGS 7.5 minute topographic maps
>
> -------- Original Message --------
> Subject:        Re: Inquiry from government documents librarian about
> classification systems used for USGS 7.5 minute topographic maps
> Date:   Thu, 04 Feb 2010 12:40:27 -0500
> From:   Paige Andrew <[log in to unmask]>
> To:     Maps, Air Photo, GIS Forum - Map Librarianship
> <[log in to unmask]>
> References:     <[log in to unmask]>
>
>
> Thomas (and Valerie),
>
> My bet is that you will find relatively few places classifying, and
> particularly filing, their 7.5-minute topo sheets using SuDocs, but
> I'll be curious to find out. I personally cannot think of a map
> collection I've visited that didn't file the sheets alphabetically by
> sheet name under a G-class number either for the U.S. as a whole or
> subdivided by state.
>
> Paige