ɪt wʌz dɪskˈʌvɚd baɪ luːtˈɛnəntkˈɜːnəl wˈɪljəm pˈæɾɚsənz pˈɑːɹɾi wɛn ðeɪ wɜːɹ ɛŋɡˈeɪdʒd ɪn ɐn ɛksplˈoːɹətˌoːɹi vˈɪzɪt tə ðə hˈʌntɚ vˈæli dˈʊɹɹɪŋ dʒuːlˈaɪ wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd wˈʌn.
It was discovered by Lieutenant-Colonel William Paterson's party when they were engaged in an exploratory visit to the Hunter Valley during July 1801.