In reply to maxsmith:
> thanks, I take it there is an earlier edition to match the 97 wye valley one?
Sort of - the (hardback) 1999 edition. From what I recall there was a reluctance to delay publication of the rest of the Wye Valley in 1997 while awaiting completion of the Symond's Yat section; hence the split. There have now been two editions for each area in the separate format, plus the odd supplement.