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
Institut de Géographie
191, rue Saint Jacques
75005 Paris