Australia's last remaining woolscour is being recognised today with an Engineering Heritage National Marker.
Queensland Governor, Penelope Wensley, will be in Blackall, in the state's west to present the award.
Built in 1908 the Blackall woolscour was, at the time, a state of the art facility used to prepare wool for market.
Engineering historian, Brian McGrath, says "its primary role was to remove the lanolin, sweat residue, dust and the dirt from the fleece."
He says the scoured wool would attract better prices for the grower.
The steam powered wool washing plant is the only one of its kind left in Australia.
"Its major significance lies in the fact that it was, in its era, a quite up to date example of mechanical, electrical and chemical engineering technology.
"And it is the only woolscour of its type remaining in Australia today."
In 2014, the woolscour is now a tourist attraction, however it still works as it did in 1908.
Mr McGrath says the Blackall community is to thank for maintaining the historic machinery.
"It lay idle until 1989 when the good fold of Blackall decided the wool scour was worth preserving."
It was then that the Blackall Woolscour Association was formed to take over the plant and of course today we have it back in an operational condition.
The woolscour operated commercially under steam power from 1908 until 1978, bringing huge economic benefit to Blackall over those 70 years.
Christine Campbell is from Norwood station west of Blackall and says the woolscour was always a busy place.
"The scour was very important because in its early days it was a mechanical shearing shed.
"Generally at that time people only had hand shears so the scour and the shearing shed became a centre for sheep.
"It provided a lot of employment for the district."
She says the community saw preserving the woolscour as a tourism opportunity as it provides a unique experience of travelling back in time.
"You cannot experience this anywhere else.
"I think people saw it as the past of what was then, a thriving wool industry.
"It was such an important part of Blackall's history."