There are multiple artists with the name Mountain.
These are photos from concerts where Mountain played, so they may be of other bands that played the concert as well.
Mountain / Steve Miller Band / Steve Baron Quartet Oct 31 - Nov 1, 1969 New York, New York, United States Uploaded by Donin Brewster
Mountain / Steve Miller Band / Steve Baron Quartet Oct 31 - Nov 1, 1969 New York, New York, United States Uploaded by Zimtrim
Arlo Guthrie / Mountain Oct 10, 1969 Washington, D.C., United States Uploaded by Zimtrim
Mountain / Lonnie Mack Oct 4, 1969 Philadelphia, Pennsylvania, United States Uploaded by Zimtrim
Mountain / Lonnie Mack Oct 3, 1969 Philadelphia, Pennsylvania, United States Uploaded by Zimtrim
Chuck Berry / Bo Diddley / Mountain Sep 20, 1969 Boston, Massachusetts, United States Uploaded by Zimtrim
Chuck Berry / Bo Diddley / Mountain Sep 19, 1969 Boston, Massachusetts, United States Uploaded by Zimtrim
Mountain / NRBQ Sep 9 - 11, 1969 New York, New York, United States Uploaded by Zimtrim
Woodstock Music and Art Fair Aug 15 - 18, 1969 Bethel, New York, United States Uploaded by Concert Archives Credit: Derek Redmond and Paul Campbell (CC BY-SA)
Woodstock Music and Art Fair Aug 15 - 18, 1969 Bethel, New York, United States Uploaded by Concert Archives Credit: Ric Manning - Source Link (CC BY)
Woodstock Music and Art Fair Aug 15 - 18, 1969 Bethel, New York, United States Uploaded by Concert Archives Credit: Mark Goff - "Opening ceremony at Woodstock" (Public Domain)
Woodstock Music and Art Fair Aug 15 - 18, 1969 Bethel, New York, United States Uploaded by Concert Archives