As I said in your bird sightings thread I was up at Grane a little later than you and as the day warmed up there were many more butterflies about. I saw the following from below the dam wall and around the reservoirs
small skipper - 140
large skipper - 3
small white - 3
large white - 44
green-veined white - 520
meadow brown - 165
gatekeeper - 227
ringlet - 1
comma - 2
red admiral - 1
peacock - 10
small tortoiseshell - 51
common blue - female between Ogden & Holden Wood
small copper - 82
small heath - 2
I also had the following on the way to the reservoirs
white letter hairstreak - 3 at Helmshore Textile Museum
small white - 2 at Camms & 2 at Helmshore Textile Museum
large white - 10 at Camms and 10 at Helmshore Textile Museum