Which Vancouver studio did Metallica use for about one week while recording The Black Album?

Metallica used Little Mountain Sound Studios in Vancouver for about one week while recording The Black Album.

Most of the album was recorded at One on One Recording Studios in Los Angeles, but the band made a short Vancouver stop during the wider sessions. The Vancouver work is a neighboring detail to the album's principal recording location and is therefore often omitted in brief summaries of the record.

The main sessions stretched from October 1990 through June 1991 under producer Bob Rock. The extended process reflected the band's determination to refine arrangements, performances, and the overall sound. Rock pushed the group toward a tighter, heavier production style that differed from the more intricate presentation of ...And Justice for All.

Little Mountain Sound Studios is also associated with other major rock recordings, which can lead to confusion with Metallica's earlier Copenhagen sessions at Sweet Silence Studios. For The Black Album, however, the Vancouver facility was used only briefly rather than serving as the primary studio.