Bullhouse minewater discharge into the River Don, near Penistone, west Yorkshire.

This is the Bullhouse colliery minewater discharge into the River Don at Ecklands, near Penistone, West Yorkshire.

The mine worked the Halifax Hard seam and was drained by a 'water drift' - a long straight tunnel on a gentle downward gradient - which had it's outfall in the banks of the River Don as in the photo. The mine was abandoned in 1915.

Since this photo was taken, the Coal Authority has diverted the minewater, pumping it to treatment works and settling lagoons in an old quarry nearby, before allowing it to return to the river.