mountain man
/ˈmaʊntɪn ˌman/noun
1A man who is native to or lives in a mountainous region; (US ) a hillbilly. Now chiefly US.
2 US. A backwoodsman, a trapper; a pioneer.
Origin
Late 16th century; earliest use found in Thomas Churchyard (?1523–1604), writer and soldier. From mountain + man.