Now obscure, known mostly for one song ("Mississippi Queen") played endlessly on "classic rock" radio, at one time Mountain had a huge following. Always a good concert draw, Leslie West (whose solo album was humorously called The Great Fatsby, featuring Mick Jagger on rhythm guitar), Corky Lang, and the late Felix Pappalardi (who, as producer, is responsible for Cream's Disraeli Gears LP), were one of the proto-heavy metal bands of the late-60's, early-70's. West was one of the first to sound like his guitar was always on "11". They're still out there touring on the nostalgia circuit, although Pappalardi passed way in 1983.
Here's "Theme From an Imaginary Western"
Here's them vamping and showing a bit of fun at their own expense.
Here's one of their better songs, although with Pappalardi gone, I wonder how good it still is, "Nantucket Sleighride":
