Relic of the past, this was a new working of the Billia Mine (otherwise Reeth Consols) by the St Ives Consols company. This engine house stands by the B3311 road and used, at least, to portrayed in working condition on the signboard of the nearby Engine Inn, Cripplesease. Operations here ceased in 1923 owing to the low price of tin. 200 persons were employed here in the last few years, the deepest level in the workings being 240 fathoms.
