-------- 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