Most of Metallica's 1991 album, known as The Black Album, was recorded in Los Angeles.
The principal recording location was One on One Recording Studios in Los Angeles, where sessions ran from October 6, 1990, to June 16, 1991. The band also spent about a week recording at Little Mountain Sound in Vancouver, British Columbia, and completed final overdubs and mixing at A&M Studios in Hollywood.
The Los Angeles sessions were shaped by producer Bob Rock's insistence that the musicians work together more collaboratively. That approach differed from the band's earlier practice of recording many parts separately and assembling them later.
Vancouver is therefore a genuine associated location, but it was not the main city for the sessions. The album's recording history is often summarized as Los Angeles because One on One hosted the primary work, while Vancouver and Hollywood handled additional stages.