Spending more than £400?Ask for a quote.
Northumberland Bouldering Guide
Northumberland bouldering doesn't get much of a mention down south, but the quality of the problems, the location, and the sandstone they are on is superb.
This guide contains over 2000 individual boulders on a range of crags in the area, and full colour photography and topos throughout.
The fontainebleau grading system has been used.