Etheridge railway line
Although construction was delayed by strikes in mid-1908 over the pay rate for railway workers, in February 1909 the line was opened to Einasleigh from Almaden. The Einasleigh copper mine was originally discovered by Richard Daintree in the mid 1860s, but the cost of transporting ore from the site made it uneconomic and it soon closed. The location was lost until the 1890s and a renewed interest in copper on the Etheridge field. A township known as Copperfield was established on the banks of the Copperfield River to service 12 copper mining leases extant by 1899, and this was surveyed as Einasleigh in 1900. The mine was reopened that year by the Einasleigh Freehold Mining Company, in which John Moffat had acquired an interest. By 1901 copper matte from a smelter at Einasleigh was being transported to Almaden by camel train. The coming of the Etheridge Railway in 1909 allowed Einasleigh to boom, and it was the largest centre on the Etheridge between 1907 and 1910. By 1910 six ore trains a week were running from Einasleigh to the Chillagoe smelters, and in 1911 the mine was purchased by the Chillagoe Company. It closed in 1914, and was reopened by the Queensland Government between 1920 and 1922.
Eaton Branch Railway
The Eaton Branch Railway began at "Eaton Junction", immediately to the south of Waltham-on-the-Wolds station. It curved leftwards to run north-west on an embankment, gaining height above the surrounding fields. It then crossed Green Lane on an overbridge. North of this bridge, the line curved to the north, still on an embankment. The Eastwell Branch left the line at the start of this curve, just north of Green Lane. It is probable that this was never used apart from a short section near to the junction used as a siding. Certainly by 1903 a narrow gauge line had been built on its formation by the Eastwell Iron Ore Company. The standard gauge siding was used to supply equipment to the quarrying company, whose narrow gauge line was extended to serve quarries at Eaton and Branston. All the ore from those quarries and those at Eastwell was taken via the narrow gauge line including a cable operated incline to sidings at the Great Northern and London and North Western Joint Line near Harby.