ðɪ ælbˈɜːtən nˈæɹoʊz ɔnðə klˈɑːɹk fˈɔːɹk ɹˈɪvɚ ʃˈoʊ ˈɛvɪdəns ðæt kˈɑːlks plˈʌkt bˈoʊldɚz fɹʌmðə kˈænɪən ænd dᵻpˈɑːzɪɾᵻd ðˌɛm ɪn ɐ ɹˈɑːk ænd ɡɹˈævəl bˈɑːɹ ɪmˈiːdɪətli dˈaʊnstɹiːm ʌvðə kˈænɪən.
The Alberton Narrows on the Clark Fork River show evidence that kolks plucked boulders from the canyon and deposited them in a rock and gravel bar immediately downstream of the canyon.