The main gate to the former Gaol is a monumental work. The arch keystone facing Lydiard Street is beautifully executed. The gates and the iron lacework over the top are distinctive.The arch under the flyover is also distinctive; the basalt keystone appears to have been cut from one single block of stone. Most of the gaol has been demolished to allow the School of Mines Ballarat to expand onto the site. The remaining structures at the site include the main gate, warden's residence and governor's residence. These buildings are now used by Federation University.The main gate to the former Gaol is a monumental work. The arch keystone facing Lydiard Street is beautifully executed. The gates and the iron lacework over the top are distinctive.The arch under the flyover is also distinctive; the basalt keystone appears to have been cut from one single block of stone. gate, gaol, arch keystone, lydiard street, iron lacework, flyover, stone, basalt, ballarat school of minesfederation university, warden's residence, governor's residence