A quarry known as the “Big Quarry” was opened on Church Street in March 1866 and operated until it closed in the 1920. This supplied Port Chalmers brecia locally known as bluestone which was used in the foundations of the Dunedin Railway Station, the Otago Boys’ High School, the University of Otago Clocktower, Dunedin Town Hall and in the Port Chalmers Graving Dock and to construct many other buildings in the area. The site is now home to the Lady Thorn Rhododendron Dell.