What was the name of Metallica's main tour supporting The Black Album?

Metallica's main tour supporting The Black Album was the Wherever We May Roam Tour.

The tour followed the album's 1991 release and took Metallica through arenas and major international venues. It began in 1991 and continued into 1992, with the band presenting songs from the new record alongside material from its first four studio albums.

The tour title is sometimes confused with the album song “Wherever I May Roam.” The song uses “I,” while the concert tour is officially titled Wherever We May Roam. The distinction matters because both names appear frequently in coverage of the album's promotion.

The tour also included the band's appearance at the Freddie Mercury Tribute Concert. Metallica later joined Guns N' Roses for a co-headlining stadium tour, and the documentary A Year and a Half in the Life of Metallica recorded parts of the touring period. The tour's elaborate stage included a fan area known as the Snake Pit.