In reply to markryle:
Hi Mark
Calf Crag cove is a gem. The best ones are those highest up with minimal descent so here are some more of my favourites: further along the Scafells ridge, you don't usually have to descend too far on the Wasdale side of Broad Crag col before you hear the first trickle beneath the stones. On Scafell itself, you probably need to descend as far as Foxes Tarn.
On the Coniston Fells, there’s a little spring if you lose 80m on a SSW bearing from Swirl How
Helvellyn has Brownrigg Well 100m below the summit, of course. At the northern end of the Helvellyn range, Millgill Head provides good water at 790m.
On the Far Eastern fells, the streams running southeast off Thornthwaite Crag are good around 750m. Likewise, minimal descent is required from Caudale Moor (lose maybe 60m on a SW bearing from the summit)