Noun
a river that rises in the Rockies in northwestern Montana and flows eastward to become a tributary of the Missouri River
Source: WordNetBull riding was won by Dayton Johnston from Milk River - he had an 80 point ride. Source: Internet
“Justice for Milk River dogs,” one of the placards read. Source: Internet
Other formations have been recorded as well, like the Milk River and Foremost Formations. Source: Internet