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 / Frost / T.C.B. Dec 27, 1969 Newark, New Jersey, United States Uploaded by Zimtrim
Mountain Dec 5, 1969 Mamaroneck, NY Uploaded by Donin Brewster
Mountain / Humble Pie / Eric Mercury Nov 22, 1969 Boston, Massachusetts, United States Uploaded by Zimtrim
Mountain / Humble Pie / Eric Mercury Nov 21, 1969 Boston, Massachusetts, United States Uploaded by Zimtrim
Mountain / Humble Pie / Eric Mercury Nov 20, 1969 Boston, Massachusetts, United States Uploaded by Zimtrim
Mountain / Steve Miller Band / Steve Baron Quartet Oct 31 - Nov 1, 1969 New York, New York, United States Uploaded by Zimtrim
Mountain / Steve Miller Band / Steve Baron Quartet Oct 31 - Nov 1, 1969 New York, New York, United States Uploaded by Donin Brewster
Arlo Guthrie / Mountain Oct 10, 1969 Washington, D.C., United States Uploaded by Zimtrim