The sinking date for Siston Hill Colliery,

Siston Siston (pronounced "sizeton") is a small village in South Gloucestershire, England. It is east of Bristol at the confluence of the two sources of the Siston Brook, a tributary of the River Avon. The village consists of a number of cottages a ...

Bristol Bristol () is a city, ceremonial county and unitary authority in England. Situated on the River Avon, it is bordered by the ceremonial counties of Gloucestershire to the north and Somerset to the south. Bristol is the most populous city in ...

is unknown, but was probably in the late 1790s or early 19th century. There is a surviving accident report dated 1804. This names the colliery owner as a Mrs. Peterson. By 1831 the colliery was under the ownership of Toghill & Company. The 1880 List of Mines names the owner of the pit as S. H. Hadley. The pit was put up for sale in 1889 and the prospectus states that it had four shafts, two of which were sunk to a depth of . The winding shaft was in diameter, walled throughout and had two separate cages. The winding engine was a

Boulton and Watt Boulton & Watt was an early British engineering and manufacturing firm in the business of designing and making marine and stationary steam engines. Founded in the English West Midlands around Birmingham in 1775 as a partnership between the Engli ...

, had a stroke and a drum, and could lift 700 to 800 tons of coal a day. The pumping engine had two cylinders and was in working order. Above ground was a bank high enough for double screens which sorted the coal before it was loaded for transportation. A tunnel was provided at the bottom of the bank to enable timber and other materials to descend into the pit without first being hauled to the top. A circular chimney stack towered over the colliery.''Walking the Dramway'' by Peter Lawson The sale was not a success and the colliery never reopened.

References

{{coord, 51.463062, -2.478404, display=title Coal mines in Gloucestershire Buildings and structures in South Gloucestershire District Bristol Coalfield Underground mines in England