 They are the eastern rampart of the Fort which was used as the foundations for the signal station when it was built in 1848.The chains on the wall which are still visible were used to limit the amount of recoil of the canons used in the Fort

The construction of Fort Philip was commenced in 1804 by Governor King but it was never fully completed.It was built around the first windmill which can be seen in the painting of 1820.