
Sixty-miler (60-miler) is the colloquial name for the ships that were used in the coastal coal trade of New South Wales, Australia. The sixty milers delivered coal to Sydney Harbour from ports and ocean jetties to the north and south of Sydney. The name refers to the approximate distance by sea from the Hunter River to Sydney.
PS George Rennie was a steel-hulled ship scuttled in the lee of Hawking Point, Magnetic Island, Queensland, Australia. It was built in 1885 in Middlesex as a 151-gross-ton paddle steamer. In 1896 the vessel was purchased by Howard Smith and Company who converted it into a lighter. Howard Smith and Company used the vessel to transport coal from the anchorage at West Point to Townsville harbour. It was scuttled in 1902 to serve as a breakwater for a small jetty in the bay. The remains of the ship can still be seen at low tide from Picnic Bay beach.

Itata was a three-masted iron barque built by R & J Evans, Liverpool in 1883. She was severely damaged by a fire in her hold at Newcastle, New South Wales, Australia, in 1906. Her hulk was towed to Sydney and was scuttled in Saltpan Creek, Middle Harbour.

The Merksworth was an iron steamer screw built in 1874 at, Paisley, that was wrecked when it swamped whilst carrying coal between Newcastle and Sydney and was lost off Newcastle, Stockton Beach, New South Wales on 7 May 1898.

The Moltke was a three-masted barque built in Hamburg, Germany in 1870. The vessel was wrecked off the coast of northern Queensland, Australia in 1890 before being refloated and hulked. In 1911 the vessel was scuttled off Geoffrey Bay, Magnetic Island. The wreck of the vessel now hosts a wide range of underwater life and is a popular open-water dive site.

The SS Myola was a 655-ton screw steamer, 55 metres long, built in Middlesbrough in the United Kingdom. The Myola, could unfurl sails on her two tall masts and gain a knot or so of additional speed when the wind suited.

The Queen Bee was a wooden carvel Twin-screw steamer built in 1907 at Davistown, New South Wales, that was wrecked when she sprang a leak whilst carrying coal other general cargo between Sydney and Newcastle, New South Wales. She was lost off Barrenjoey Head, Broken Bay, New South Wales on 2 September 1922.

Wendouree was a steel steamship built as a collier by S & H Morton & Co., Leith, Scotland for Huddart Parker & Co. Pty. Ltd. She was later refitted to carry passengers for the Melbourne to Sydney run.