Hi, Thank you for yours very useful answers. Now, I just have work to do ! Best regards, *Caroline Tourette* Tél. 01 44 32 14 61 Bibliothèque de géographie *Institut de Géographie* 191, rue Saint Jacques 75005 Paris Le 20/01/2017 à 16:22, Carlson, Tom a écrit : > Hi Caroline, > > I'm not sure if this is exactly what you are looking for but here is a > link to one of our USGS publications on the "History of the > Topographic Mapping Branch " that you can download > https://pubs.usgs.gov/circ/1341/pdf/circ_1341.pdf > > I have also provided a link to our USGS Historic Quadrangle Mapping > Project, where we have scanned the majority of maps that we have made > over time: http://historicalmaps.arcgis.com/usgs/ alternatively you > may find historic maps here: https://ngmdb.usgs.gov/maps/TopoView/ > > > > This may provide you with the information that you are looking for. If > you need something else please let me know. > > Cheers, > > Tom > > > > On Fri, Jan 20, 2017 at 6:12 AM, Caroline Tourette > <[log in to unmask] > <mailto:[log in to unmask]>> wrote: > > Hi all, > > I'm a librarian in La Sorbonne library, geography department. > Apologies for my english. > > We did in the end of 2016 the cataloging of a USGS serie, called > with different names : "*30 x 60 minute series (topographic)*" (we > have a few "planimetric" too) ; "*1:100 000-scale metric > topographic map of...*", and follows the name of a town or a site > ; "*30x60 minute quadrangle*". This maps were produced in the 70's > and 80's by the USGS. The library have a great part of this serie > for many years now. > > I'd like to make a brief history of this production, to inform my > patrons and enhance this collection. I searched in the USGS > website, but I found very few informations. Do you know if there > is a (historical) review of this map serie somewhere online ? Or > in a print document (and I'll try to get this document afterwards) ? > > Thank you ! > > Best regards, > > -- > *Caroline Tourette* > > Tél. 01 44 32 14 61 > > Bibliothèque de géographie > *Institut de Géographie* > 191, rue Saint Jacques > 75005 Paris > > > > > -- > Tom Carlson, PhD, GISP > Geographer > National Map Liaison for Washington, Oregon and Idaho > US Geological Survey > 934 Broadway, Suite 300 > Tacoma, WA 98402 > 253.552.1682 Office > 253.552.1581 Fax > > *The National Map <http://nationalmap.gov> - Your Source for > Topographic Information* >