-------- 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 [log in to unmask]