ðə dˈɪfɪkˌʌltiz ænd ɛkspˈɛns ʌvðə dˈiːp ˌʌndɚɡɹˈaʊnd mˈaɪn wˈɜːkɪŋz ᵻvˈɛntʃuːəli ɹᵻdˈuːst ðə ɡˈoʊld mˈaɪnɪŋ hˈɪɹ ˈæftɚ nˈaɪntiːnhˈʌndɹɪd.
The difficulties and expense of the deep underground mine workings eventually reduced the gold mining here after 1900.