Tunnel pit

a pit or shaft sunk from the top of the ground to the level of a tunnel, for drawing up the earth and stones, for ventilation, lighting, and the like.

See also: Tunnel

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Another pit was sunk at Stockingford known as the Tunnel Pit which started to mine coal in 1891.
And number four, named Haunchwood, built by Andrew Barclays of Kilmarnock in 1911, was transferred to Haunchwood Tunnel Pit in 1925.
There is a roll of honour in the Haunchwood Institute social club, in Valley Road, bearing the names of 115 colliers from the nearby Haunchwood and Tunnel pits who went off to war and died.