In reply to PeterJuggler:
> .Otherwise southern sandstone to the south. A new bouldering guide was released this year.
Unfortunately that guide chooses to place very little emphasis on a number of important points.
Among these are :
The already extremely fragile rock becomes even more so when damp so should not be climbed except when perfectly dry.
Sandstone tends to hold water & In a typical winter it's unusual to find more than a couple of small areas perfectly dry.
The North boulder at Harrison's is, however, among the faster drying areas.