The majority of the problems are documented in Wild Bouldering and we're not included in the YG guide due to the lack of traffic. The presence of bracken was also emphasized which is a pity as most of this is very easily avoided if the appropriate approach is used. The rock is of the best quality and offers some some very good bouldering with a wide variety of styles. That being said this is a woodland location but many blocks dry quickly though one does need to avoid the bracken areas in the summer months. Many of the problems are currently being cleaned and receiving deserved traffic - several deserve to be on anyone's hit list.
Beanstalk Buttress is largely a route venue (though with one v good problem) and hasn't received the traffic it deserves since the guide revealed its delights. As a result the lines would benefit from a quick brush before an ascent.
There is a guide to the cleanest bouldering and some routes on Unknownstones.
No problems to date however there is a deer fence around the wood in which the crag sits. Only cross this at one of the three entry stiles form the moor above the woods.
There is room for several cars just uphill from the east side of the Thruscross dam, opposite the driveway to a house. Cross the road at the downhill end of the parking and go up through trees to a fence. The YG description is to follow this and then follow it southwards (onto access land) to a high deer fence with a ladder stile. Up the road is a gate and alternative approach avoiding the fence. Finding the various blocks is difficult and the new guide will help.