sometimes, yes. But a lot of the time it's a cop-out and says you have to buy an OS map. Actually you wouldn't (in my opinion) want to lug the thing rounds sites about cos it weighs a ton

But.... this here site is very searchable and gives OS coordinates and links to external map sites etc... and there are often very good directions given by the people hereabouts who have been recentlly - even when directions are given in The Book, they can be out of date, which we found when up near Kilmartin last year.

My opinion.. the book is well-presented and a good read and should be bought for those reasons; but not really comprehensive or pocket-sized in any way so shouldn't be used as the only guide for sites.