Sorry Richard. Checked my hard drive and I don't have the map of that area. If you search the Italy Forum for maps you may find there are some internet resources that may be able to help you pin down the exact locations. Glad to hear your visit went well and nice to see the local interest.
The best map I've found is this one from Eighth Army in Italy 1943-45: The Long Hard Slog by Richard Doherty (ISBN: 9781473822788) : Vitellino
No problem, if you do get chance to copy the diary at some point it would be cherished by our family, thanks for your help so far.
58 Anti-Tank Regiment RA directly supported 46 Infantry Division from mid-1940 so wherever the Division went so did they. Regards Frank