Usenet Maps from 1980 to 1987
These files represent various historical Usenet maps. Files named MAP, BBM (BackBone Map) and GRF (graphical) are from the floppy disk. I don't recall who sent me the floppy, but the photo is in his handwriting.
Other files in the PDF are photocopies of maps handed out at Usenix
conferences in January or June of the year as labeled,
and from other sources.
Files with Message-ID lines were posted to Usenet and
downloaded from groups.google.com.
Usenet-Maps-1980-1987.pdf (updated 7/14/2019)
Usenet Logical Maps
Usenet Backbone Maps
3/23/1983 (both text files are the same, GRF is from floppy)
5/6/1983 (from groups.google.com)
9/21/1983 (from groups.google.com)
Images of floppy disk containing the maps