ɪnðə sˈʌmɚɹ ʌv wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd fˈoːɹɾi wˈʌn luːtˈɛnənt tʃˈɑːɹlz wˈɪlks ʌvðə juːnˈaɪɾᵻd stˈeɪts ɛksplˈoːɹɪŋ ˌɛkspədˈɪʃən dᵻɹˈɛktᵻd luːtˈɛnənt ɹˈɑːbɚt ˈiː. dʒˈɑːnsən tə pɹəsˈiːd ˈiːst ˌoʊvɚ ðə kɐskˈeɪdz vˈaɪə ðə nˈæʃᵻz pˈæs.
In the summer of 1841 Lieutenant Charles Wilkes of the United States Exploring Expedition directed Lieutenant Robert E. Johnson to proceed east over the Cascades via the Naches Pass.