In Australia, William Lawson, Gregory Blaxland and William Wentworth reach Mount Blaxland, effectively marking the end of a route across the Blue Mountains.

William Lawson, MLC was a British soldier, explorer, land owner, grazier and politician. He migrated to Sydney, New South Wales in 1800, and who became the commandant for the Bathurst, New South Wales region in 1819, and who became a member of the New South Wales Parliament in 1843.

Gregory Blaxland was an English pioneer farmer and explorer in Australia, noted especially for initiating and co-leading the first successful crossing of the Blue Mountains by European settlers.

William Charles Wentworth was an Australian statesman, pastoralist, explorer, newspaper editor, lawyer, politician and author, who became one of the wealthiest and most powerful figures in colonial New South Wales. He was among the first colonists to articulate a nascent Australian identity.

Mount Blaxland, actually a hill, is located about 15 kilometres south of Lithgow. It was the furthest point reached by Blaxland, Lawson, and Wentworth on their historic 1813 crossing of the Blue Mountains.

The Blue Mountains are a mountainous region and a mountain range located in New South Wales, Australia. The region is considered to be part of the western outskirts of the Greater Sydney area. The region borders on Sydney's main metropolitan area, its foothills starting about 50 kilometres (31 mi) west of centre of the state capital, close to Penrith. The public's understanding of the extent of the Blue Mountains is varied, as it forms only part of an extensive mountainous area associated with the Great Dividing Range. As defined in 1970, the Blue Mountains region is bounded by the Nepean and Hawkesbury rivers in the east, the Coxs River and Lake Burragorang to the west and south, and the Wolgan and Colo rivers to the north. Geologically, it is situated in the central parts of the Sydney Basin.