Cazneaux Tree, River red gum in Flinders Ranges, South Australia, Australia

The Cazneaux Tree is an old eucalyptus growing in the Flinders Ranges of South Australia, set alone in open grassland with a broad, gnarled trunk and wide-reaching branches. It stands in flat terrain with little else around it, making it easy to spot from a distance.

In 1937, the photographer Harold Cazneaux took a photo of this tree and titled it 'The Spirit of Endurance', an image that brought the tree to wide attention. That photograph is now considered one of the most recognised works in Australian photography.

The tree is named after Harold Cazneaux, whose 1937 photograph The Spirit of Endurance made it known internationally. The National Trust of South Australia listed it as significant tree number 239 for its outstanding aesthetic beauty, and photographers and artists still come to work at the site.

The tree sits in a remote part of the Flinders Ranges and is best reached through Wilpena Pound Resort, which is the closest base. Visitors should carry enough water and wear sturdy shoes, as the surrounding terrain is open and dry.

The tree is listed by the National Trust of South Australia as significant tree number 239 on its Register of Significant Trees, cited for its outstanding aesthetic beauty. A plaque funded by Cazneaux's grandson, Dick Smith, was placed at the site in 1991.