What was the title of Metallica's tour supporting the 1991 album commonly called The Black Album?

Metallica supported The Black Album with the Wherever We May Roam Tour.

The tour lasted 14 months and included dates in the United States, Japan, and the United Kingdom. It followed the album's release and helped turn its songs into staples of Metallica's live performances.

The tour's name came from the album track "Wherever I May Roam," one of the record's five commercial singles. The campaign was part of a large period of activity for the band, which also included music videos, festival appearances, and a joint stadium tour with Guns N' Roses in 1992.

The tour should not be confused with the earlier Damaged Justice Tour, which supported ...And Justice for All. It also differs from later Metallica tours such as Poor Touring Me and WorldWired. Footage from the Black Album era and its touring cycle was included in the documentary A Year and a Half in the Life of Metallica.