bˈiːvɚhˌɛd ɹˈɑːk ɪz ɐ ɹˈɑːk fˈiːtʃɚɹ aɪdˈɛntᵻfˌaɪd ɪn wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd fˈaɪv baɪ sˈækɐɡˌæwiə, dˈʊɹɹɪŋ ðə lˈuːɪs ænd klˈɑːɹk ˌɛkspədˈɪʃən, æz ɐ lˈændmɑːɹk nˌɑːt dˈɪstənt fɹʌmðə sˈʌmɚ ɹᵻtɹˈiːt ʌv hɜː nˈeɪʃən.
Beaverhead Rock is a rock feature identified in 1805 by Sacagawea, during the Lewis and Clark Expedition, as a landmark not distant from the summer retreat of her nation.