Kathleen, Last century, others made a record for most sets in OCLC. In a WAML bulletin there is a list. We used to have all 50 states, but we weeded the eastern states a few years ago. BTW: I cataloged all of the Colorado topos individually. Christopher J.J. Thiry Outreach, Instruction, and Geospatial Information Librarian Colorado School of Mines 1400 Illinois Golden, CO 80401 p. 303-273-3697 f. 303-273-3199 [log in to unmask]<mailto:[log in to unmask]> http://library.mines.edu/ ________________________________ From: Maps-L: Map Librarians, etc. [[log in to unmask]] on behalf of Weessies, Kathleen [[log in to unmask]] Sent: Friday, June 10, 2016 12:58 PM To: [log in to unmask] Subject: USGS 7.5-minute topo maps: An item record for every sheet? Hello, I’m looking for library catalogs that have a bib record for each of the 50 states’ 7.5 minute topographic maps and have an item record for every sheet. I’ve found PSU and Indiana so far. Are there any more out there? Kathleen Weessies Geosciences Librarian; Head, Map Library Michigan State University 366 W. Circle Drive, W308A East Lansing, MI 48824 (517)884-0849 [log in to unmask]