Vent for the aquduct carrying water from the reservoirs in the upper valley to Mount Tabor. From there it went to the treatment works in Halifax. The stone structure is built on top of the spoil fromthe shaft. Note the plain coping compared to theā¦
In the foreground the railway west of the viaduct and station pre doubling to four tracks between here and Hebden Bridge in 1906. This is also before the construction of Caldene Bridge.