ɹˈɪtʃmənd mˈeɪn kˈɑːlɪɚɹi, ˈɔːlsoʊ ɪnðə kˈɜːɹi kˈɜːɹi vɪsˈɪnᵻɾi, wʌz wˈʌns ðə stˈeɪtz lˈɑːɹdʒɪst pɹədˈuːsɚ, æt θɹˈiː,fˈoːɹhˈʌndɹɪd tˈʌnz pɜː dˈeɪ, ænd wˌɪtʃ ɹᵻpjˈuːɾᵻdli hæd ðə dˈiːpɪst ʃˈæft pɚmˈɪɾɪŋ ˈæksɛs tə tˈuː sˈɛpɹət kˈoʊl sˈiːmz, ðə skˈoʊli ʃˈæft, nˈeɪmd ˈæftɚɹ ɪts fˈaʊndɚ, dʒˈɑːn skˈoʊli.
Richmond Main Colliery, also in the Kurri Kurri vicinity, was once the State's largest producer, at 3,400 tons per day, and which reputedly had the deepest shaft permitting access to two separate coal seams, the Scholey shaft, named after its founder, John Scholey.