In reply to Jon Stewart:
Railway slab area. Some unlisted stuff opposite on the base of Quarry Buttress. Highballs on The Block and West Wall. Upper Rocks. Black Garden. Angel Boulder. Don't tell me you dont have a copy of Froggatt??
Chasecliffe gives a couple of hours fun as well. There are a few bits at Shining Cliff and for the real brave explorers, closest of all to Derby is Horsly Castle Quarries.
Further out from Derby you have Rowtor Rocks, all the stuff at Stanton Moor, Amber valley stuff, Pleasley etc (as well as the Cratcliffe area which also includes Clifftop and a few minor venues)
These southern areas also tend to be much less midgy than the main peak venues on windless cloudy summer days.
Post edited at 14:21