Another mine on the western escarpment of the North Pennines, the next one along from Dufton, Scoredale and Long Fell.
Like others it started as a lead mine before switching to barytes when demand for this grew, eventually producing > 200,000 tonnes.
Although information can be found on most of the older workings there are no underground pictures, so as usual I had to look at everything, over a few trips.
Here’s the setup - the mine levels (tunnels, red dots) are scattered around Great Dunn Fell, which has a white civil aviation golfball on the top.
The coloured bands are different types of rock, sedimentary except for the purple one which is an igneous layer (the Whin Sill).
Like the mines further south the main mineralised faults run across at an angle, following the general direction of Dunfell Hush and the more recent opencast workings below the golf ball.
Starting with the surface remains.
Knock Mill. At the bottom of the valley on the right is a lead smelting mill (black dot).
I didn’t realise this was there at first, only noticing something that looked like a water-powered mill when looking down from the other side of the valley.
It’s apparently quite old (ca. 250 years) and didn’t have a long flue and chimney so would have poisoned everything in the vicinity.
The square structure in the foreground may have been an office or accommodation.
The mill is mostly rubble but is thought to have had two hearths, one at either end, with a water-powered bellows in the middle.
Part of the wheel pit.
Slag.
Aerial ropeway. This is the yellow line on the map, and was used to lower crude barytes down to mountain for processing at Millburn Grange, a couple of miles away, which also took material from Scordale and Long Fell.
Another ropeway then carried purified barytes further to the railway station at Long Marton.
The section going down the mountain is listed, apparently being ‘the best surviving example of an aerial ropeway used in a metal-mining context in England’.
Walking up from the bottom.
An intermediate station.
Several more fallen pylons, then one which must have been used to dump processing waste.
Lumps of barytes are scattered around everywhere.
Main site. The ropeway was dismantled in the 1960s, and a processing mill built up the hill near the mine, with product now transported down by lorry.
Later workings were opencast and when everything closed in 2005 the mill was dismantled and the area landscaped, so there isn’t much left.
The most interesting thing is a wooden Harz-type jig used to purify the ground barytes (this type of jig is also used for lead ore).
It works by pulsing water up and down through a bed of ground material, effectively fluidising it with the heavier stuff (barytes) settling to the bottom.
Pump and sieve sides.
Outlets.
Photo of a more recent steel version in use at the Silverband mill before it was demolished.
There are some of these jigs at the Killhope Lead Mining Museum not far away, which is well worth a visit if you’re in the area.
A pumphouse near a reservoir with a modern (Worthington-Simpson) pump - a lot of water was needed for processing.
The only building remaining, empty apart from what may be a small hammer mill or similar for grinding up ore samples and a table with something gloopy on it.
View down from above the main site - landscaping has obliterated one of the higher tunnel entrances in this region.
continued
Like others it started as a lead mine before switching to barytes when demand for this grew, eventually producing > 200,000 tonnes.
Although information can be found on most of the older workings there are no underground pictures, so as usual I had to look at everything, over a few trips.
Here’s the setup - the mine levels (tunnels, red dots) are scattered around Great Dunn Fell, which has a white civil aviation golfball on the top.
The coloured bands are different types of rock, sedimentary except for the purple one which is an igneous layer (the Whin Sill).
Like the mines further south the main mineralised faults run across at an angle, following the general direction of Dunfell Hush and the more recent opencast workings below the golf ball.
Starting with the surface remains.
Knock Mill. At the bottom of the valley on the right is a lead smelting mill (black dot).
I didn’t realise this was there at first, only noticing something that looked like a water-powered mill when looking down from the other side of the valley.
It’s apparently quite old (ca. 250 years) and didn’t have a long flue and chimney so would have poisoned everything in the vicinity.
The square structure in the foreground may have been an office or accommodation.
The mill is mostly rubble but is thought to have had two hearths, one at either end, with a water-powered bellows in the middle.
Part of the wheel pit.
Slag.
Aerial ropeway. This is the yellow line on the map, and was used to lower crude barytes down to mountain for processing at Millburn Grange, a couple of miles away, which also took material from Scordale and Long Fell.
Another ropeway then carried purified barytes further to the railway station at Long Marton.
The section going down the mountain is listed, apparently being ‘the best surviving example of an aerial ropeway used in a metal-mining context in England’.
Walking up from the bottom.
An intermediate station.
Several more fallen pylons, then one which must have been used to dump processing waste.
Lumps of barytes are scattered around everywhere.
Main site. The ropeway was dismantled in the 1960s, and a processing mill built up the hill near the mine, with product now transported down by lorry.
Later workings were opencast and when everything closed in 2005 the mill was dismantled and the area landscaped, so there isn’t much left.
The most interesting thing is a wooden Harz-type jig used to purify the ground barytes (this type of jig is also used for lead ore).
It works by pulsing water up and down through a bed of ground material, effectively fluidising it with the heavier stuff (barytes) settling to the bottom.
Pump and sieve sides.
Outlets.
Photo of a more recent steel version in use at the Silverband mill before it was demolished.
There are some of these jigs at the Killhope Lead Mining Museum not far away, which is well worth a visit if you’re in the area.
A pumphouse near a reservoir with a modern (Worthington-Simpson) pump - a lot of water was needed for processing.
The only building remaining, empty apart from what may be a small hammer mill or similar for grinding up ore samples and a table with something gloopy on it.
View down from above the main site - landscaping has obliterated one of the higher tunnel entrances in this region.
continued
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