Alexander Collie explored to the north of the Sound in 1831. On 29 April, he described the Stirling Range and recorded names for the main peaks. The following year, Robert Dale led an expedition to the Range. On 24 January 1832, he made the first recorded ascent of a peak in the Stirling Range, scaling Toolbrunup. Late in 1835, Governor James Stirling and John Septimus Roe led an expedition from Albany to Perth. They first saw the Stirling Ranges on 3 November, and on travelling closer to them the following day, Roe gave them their name.