Here's an extract from a 1912 Ordnance Survey map. I've marked the location of the Rock in red. You may find it interesting to switch between the map & the same area on Google Earth. An interesting thing is to see the extent of the railway system. Notice all the lines headed off to the right to Cammell Laird
's & the extensive Mollington St. loco sheds. Town station is just off the top of the map, it was closed to passengers in 1945 & completely in 1961. You can see the dock lines branching off just to the left, about to enter the Haymarket tunnel. Another point of interest is Pearson Rd., which was built to allow the trams to get up from Argyle St. South to Church Rd. (the tram lines are marked on the map).