This one-acre pool with 20 pegs is, with Mill Pool, the smallest of the four Furnace Mill fisheries.
Despite this, it is slightly deeper than the others with an average depth of seven feet falling to nine feet in the centre.
Whilst the stocking sizes, species and densities are much the same as for Furnace Pool, there are some larger carp in here with commons, mirrors and ghosties running to 25lbs.
Having said that, the average size of the carp tends to be slightly smaller than in Furnace Pool.
Willow is a very mixed and productive pool holding roach, rudd, bream, perch, tench, barbel, orfe, ide and chub as well as the carp but despite this is fished less than Mucky Meadow or Purnace Pool as it is further away from the car park.
When fishing the right hand bank pegs 55 to 67, a lot of fish are caught very tight to the margins where there is a steep drop to a marginal shelf where the fish regularly patrol, particularly in the summer months when the water is warmer.
The left hand bank pegs 68 to 74 have margins which slope straight down to the bottomof the pool.
A lot of fish feed up and down this slope, so twitching the hook bait back against the slope works well.
Also, this side of the pool is slightly deeper, so fishing up in the water works well as the fish come up to compete for the loose feed which should be introduced regularly to keep them going.
Willow Pool holds the Furnace Mill fishery match record with a 255lb 12oz catch taken by regular open angler Paul Cook.