Allan's polygon question

[/S=E.ODOHERTY/OU=R02F06A/PRMD=USDA.FS.X400/ADMD=TELEMAIL/C=US/ at sprint.com]

Allan,
Sound like you could run r.thin and r.line with the binary raster 
that you have then get into v.digit and label the polygons.
Erin O'Doherty