Wheal Pool mine is located 1.2kms SW of Helston on the east side of the river Cober, Wheal Pool developed a N-S lead lode to a depth of 50 fathoms (92mts). And is believed to have been at work well before its first recorded working in 1790. In the 1790 working the mine had it's own smelter producing up to 50oz silver per ton of lead ore. The mine continued to be worked until 1796. Pool is said to have closed due to a dispute between the owners. Although it is also recorded that the lode was cut off by slide to the south. Development was by opencast methods and by three working shafts.
1794.There is evidence that the house was occupied by a 30-inch Boulton and Watt engine for a short period around 1800 (Cunnack provides documentary confirmation). Modern excavations have shown that the house had been used earlier for a 30/36-inch Hornblower compound engine erected in 1794.
1800 Helston 11th Oct[obe]r 1800 Dear Sir, You will see clearly by the annexed Letter from Mr. Hornblower to Mr. Reed that the Bond of Indemnity to Wheal Pool Adventurers have been executed by Messrs Winwood & Hornblower - & for what Purpose it was sent back unexecuted from Bristol I cannot understand unless it was to prevent the Adv[enture]rs from & refusing to pay more than the Price of Agreement for the erecting the Engine Vizt £1000. & which if it had been understood by the Adv[enture]rs that the Bond had been really executed I amongst the rest would have positively objected to paying more than that Sum - you had better take Care of this Letter & I remain with Compliments to Mr. Bolton, Dear Sir Your m[o]st obed[ient] Serv[an]t W[illia]m Johns.''
1853 The next recorded working. It is also recorded that as well as the main N-S lead lode the sett also contained two other lodes. The owners had a large tracked of ground underlease, including The Loe (an expanse of water cut off from the sea by a mud/gravel bar). They re-opened an adit driven through the cliffs at the southern end of The Loe to drain it (driven in the 1790 working to stop the water backing up and drowning the mine). By doing this the owners were able to remove up to 8mts of mud sediments, and work up to 1.25mts of alluvial cassiterite gravel/mud. The out flow this adit was used by tin streamers to work the tailings dumps of the mine.
1883 There was some prospecting at the mine, when test pits located the continuation of the lode south of the slide.
There are no recorded output figures for lead, silver or tin.
Wendron Mining District