Her visit coincides with the 130th anniversary of the 1891 Shearers' Strike and she was escorted from the railway station at the centre of the dispute 130 years ago to the Centre by a troop of Australian Light Horsemen on hand for the weekend.

The multi-million-dollar upgrade to the attraction's entrance was delivered by the Palaszczuk government and was described by the Premier as one of western Queensland's most important tourism attractions.

"This place is iconic. Not just for Queenslanders but for Australians," Ms Palaszczuk said.

"These upgrades will help to ensure more Australians visit this region to embrace our heritage."

The new entry building is designed to welcome tourists into the facility directly from the main street in Barcaldine, and features a themed entry to draw guests inside, a café-restaurant, a retail outlet, children's activity area, restrooms, covered and easy access for disability parking, and environmental utilities.

The upgrades were completed in time for Monday's Labour Day celebrations, which featured the traditional march on the streets of Barcaldine.

Tourism Minister Stirling Hinchliffe said $2.2 million had been given by the government for the project, as part of the $12.2 million invested in the outback in 2018 to increase infrastructure.