Many of the climbs used in those days fell victim to ongoing quarry operations.

Kellow was known as a "fearless innovator", and set about modernising the quarry operation.

The firm began quarry operations on Kelley's Island in 1886 and was dissolved in the early 1960s.

Train rails were twisted, rail cars overturned, and the quarry operation was devastated.

The D9 is most commonly found in use in construction, forestry, mining, waste, and quarry operations.

Lake Almaden was historically a meadow but was formed by a gravel removing quarry operation.

It is not yet open to the public due to a nearby quarry operation, but expects to be open by 2012.

Also, the quarry operation was allowed to continue, but was contained within a nine acre area.

The D11 is most commonly found in use in large scale forestry, mining, and quarry operations.

Structures and excavations from the quarry operations can be seen throughout the park.