ðɪs tˈʊɹ ɛksplˈoːɹd ðə sˈɜːfɪs fˈiːtʃɚz ʌv kˌɑːnvəlˈuːɾᵻd ɹˈɑːk kɹiːˈeɪɾᵻd baɪ ðə haɪdɹˈɔːlɪk mˈaɪnɪŋ pɹˈɑːsɛs jˈuːzd dˈʊɹɹɪŋ ðə ɡˈoʊld ɹˈʌʃ.
This tour explored the surface features of convoluted rock created by the hydraulic mining process used during the gold rush.