Pump Engine House to Mitchell's Shaft of West Peevor Mine at SW 706 440

The pump engine house for Mitchell's Shaft of West Peevor Mine is a former tin mine structure, now in a derelict state. It was likely built around 1880 and was altered and reduced in height in 1966. The building is constructed from uncoursed killas rubble with granite quoins, featuring a bob wall made of squared granite set in killas bedding, and window arches made of brick. It has a rectangular plan oriented on an east-west axis, with the bob wall located to the west. Originally three stages high, it now stands at two stages; the bob wall includes a round-headed opening with two stages divided by a granite lintel, and there is a small round-headed window on the north side. In front of the bob wall is a rectangular concrete cap over the shaft, with a high rectangular platform to the left. Historically, the mine was known as West Treleigh Mine, with a new shaft sunk in 1878 following the early success of Wheel Peevor Mine. It ceased operations in 1898 due to a decline in tin prices. Although it is separate from the larger site to the east, it shares group value with it.