Keyboardist Steve Knight (from Devil's Anvil, another of Pappalardi's productions) was added after Landsberg left to form another group, Hammer, with Janick.

[3] Mountain began a hectic touring schedule in the middle of which they recorded a follow-up album, Nantucket Sleighride, released in January 1971.

[11] West has since cited a combination of drug abuse within the band and Pappalardi's road weariness and burgeoning hearing impairment as primary factors.

[3][11] Their first American performance was a Carnegie Hall concert, prompting a bidding war that Columbia Records won, and the new trio cut two studio albums and a live release over the next two years.

[3] After pursuing separate musical paths for almost a decade, West and Laing reunited Mountain, recruiting Miller Anderson (ex-Savoy Brown & Keef Hartley) on bass in 1981.

[11] This line up played at the Knebworth Fayre on June 22, 1985 alongside Mama's Boys, Blackfoot, Meat Loaf, Scorpions, Deep Purple, and others.

[12] Mountain went dormant again until 1992, when West and Laing teamed up once again and brought in Richie Scarlet (known for his solo work and collaborations with Ace Frehley) to round out the lineup that had a live appearance in The Dennis Miller Show.

Scarlet was replaced with Randy Coven in 1993 and in 1994 there was a Mountain lineup that included West, Laing, Noel Redding and occasional special guest guitarist Elvin Bishop.

In 2003 West and Laing authored a book of recollections, Nantucket Sleighride and Other Mountain On-the-Road Stories, detailing their time with the band at its peak and their subsequent careers.

Mountain's video game debut came in 2007 on RedOctane's Guitar Hero III, featuring "Mississippi Queen" as a playable track.

Their final album was 2007's Masters of War, featuring twelve Bob Dylan covers and a guest appearance from Ozzy Osbourne.

The band headed out on the road during October and November 2008 on a North American tour opening for Joe Satriani,[13] and with former Michael Schenker Group member Rev Jones on bass.

A review of the San Diego House of Blues date covered the Mountain set, including "Blowing in the Wind" from the Masters of War album, with enthusiasm.

[14] Fellow Long Island native Howard Stern has called Mountain one of his favourite bands and has occasionally played their music on his show.

Beastie Boys are also noted for their use of a brief sample of "Mississippi Queen" on the track "Lookin' Down the Barrel of a Gun" from their sample-heavy 1989 album, Paul's Boutique.