ðə fˈɔːlz fˈɔːɹmd wɛn wˈɔːɾɚɹ ɪɹˈoʊʒən baɪ stɹˈiːmz kɹiːˈeɪɾᵻd ɡˈoːɹdʒᵻz θɹuː lˈeɪɚz ʌv bɐzˈɔlt ænd ɹᵻsˈɪstənt tɹˈækaɪt.
The falls formed when water erosion by streams created gorges through layers of basalt and resistant trachyte.