It is known
from records that the Straitsteps Vein was worked in 1691 by Matthew Wilson who
was one of the first to obtain a lease. Afterwords the mine was worked by the
London Lead Company. In the early 18th century two waterwheel powered engines
known as "Bab Gins" were used at the mine for de-watering. It is believed that
the Wanlockhead Bean Engine at Straitsteps Mine was built some time in the mid
19th century for draining Straitsteps Mine and other workings.