tˈoʊɾəl sɚvˈeɪd lˈɛŋθ ʌv blˈæk kˈæzəm ɪz , ænd ðɪ ˌoʊvɚɹˈɔːl dˈɛpθ, ɪŋklˈuːdɪŋ ðə lˈeɪk, ɪz , wɪð əbˌʌv lˈeɪk lˈɛvəl.
Total surveyed length of Black Chasm is , and the overall depth, including the lake, is , with  above lake level.