A booklet of some 20 pages, well researched, looking at Dragon/Ley Lines in relation to Megalithic/Bronze Age sites in the Blackburn area. Though I know little of this line of research, Butler's method of observation is worthy of considerstion. The book is full of diagrams, bearings with parallax corrections using digital compass and clinometer - worth a look.
Copies available from:
Mark Butler
47 Queen Victoria Street
Blackburn
BB2 2RZ
Copies available from:
Mark Butler
47 Queen Victoria Street
Blackburn
BB2 2RZ