I'll claim 3560, a figure I found for Snowdon, I have walked up that one (probably up the railway track and down the miners track). Mountain walking was never particularly my thing but Pip (mum) was very keen. I believe she knew the Peak District well and used to hitch from Brum where she trained as a physio (before I was born) and stop at places like Edale. If she could pick her own "God's country" though, it would be the Carneddau