A very dry summer in 1859 caused the halt to stamping due to lack of water.
This year during the drought there was a reasonable flow of water down the river.
It could be the gunpowder works higher up was responsible for the lack of flow.
Lack of Water 1859
Interesting to see how the lodes varied in width at various levels, was 127 fathoms the deepest at this point in time? My maps & charts show 215 fathoms, (the stuff of nightmares!).
The quoted lead yields per level I guess are for lead bearing ore rather than finished metal?
Have a Good Christmas & a Happy New Year.
Cheers, David.
The yields are for crushed ore rather than metal not a lot of sulphides here so the percentage lead would be high.
215f was the deepest the mine achieved Mary Ann in Menheniot another lead mine was twice as deep! Most of the lower levels collapsed causing the closure of the mine.
Have a good one!