Whyalla's the third most populous city in South Australia after Adelaide and Mount Gambier. It's a seaport located on the east coast of the Eyre Peninsula in South Australia. History It was founded as Hummock's Hill in 1901 by the Broken Hill Proprietary Company (BHP) as the end of a tramway bringing iron ore from the Middleback Ranges to be used in the lead smelters at Port Pirie as flux. A jetty was built to transfer the ore. The settlement consisted of small cottages and tents clustered arou… (More on Whyalla)