Still working on the exact location of the walker works,but one thing they all have  in common is they were next to the main river that flows through Rotherham, the Don.
This was used for powering machinery,among which of course was the boring tools,and other equipment.
And the other major need for the river was transporting the finished product to goole and then by sea to chatham and portsmouth.
Locations

Kilnhurst/thrybergh

Masboro street

Holmes Masboro

Burcroft at conisborough.

There is now nothing on the surface remaing, has far as I know at these sites so,as don scott suggests in his article a dig might unearth something maybe a complete cannon.