ðə kɹˈiːk ɪnˈɪʃəli flˈoʊz ˈiːstwɚd dˌaʊn ðə mˈaʊntɪn, fˈɔːlɪŋ ɪn ɪts fˈɜːst .wˈʌns ɪn lˈaʊdaʊn, ðə kɹˈiːk kəntˈɪnjuːz ɪn ɐ nˈɔːɹθiːstwɚd dᵻɹˈɛkʃən fɔːɹ tə ðə wˈɛstɚn fˈʊt ʌv kˈæɾəktˌɪn mˈaʊntɪn, wˌɛɹ ɪt tˈɜːnz tə ðə nˈɔːɹθ bɹˈiːfli, bᵻfˌoːɹ ɹˈiːtʃɪŋ ðə kˈɑːnfluːəns ʌvðə nˈɔːɹθ fˈɔːɹk ænd ðˈɛn tˈɜːnɪŋ tə ðɪ ˈiːst ænd kˈʌɾɪŋ θɹuː ɐ ɡˈæp ɪnðə mˈaʊntɪn.
The creek initially flows eastward down the mountain, falling  in its first .Once in Loudoun, the creek continues in a northeastward direction for  to the western foot of Catoctin Mountain, where it turns to the north briefly, before reaching the confluence of the North Fork and then turning to the east and cutting through a gap in the mountain.