Currently in the middle of a European festival run, Slipknot [ tickets ] has revealed a late-summer trek of the western US behind last year's "All Hope is Gone."

The masked metal-heads will begin the stateside outing Aug. 22 in Seattle, working their way through 11 cities before the final tour stop Sept. 5 in Milwaukee. Anthrax and The Black Dahlia Murder will provide opening support. The full schedule is shown below.

The Iowa-based nu-metal outfit released "All Hope is Gone," the band's fourth studio album, last August. The effort, which followed 2004's "Vol. 3: (The Subliminal Verses)," marked the group's first No. 1 debut on The Billboard 200.

"We are an extreme band with extreme vision and we do it the way we want it," percussionist Shawn Crahan, a.k.a. Clown, said in recent interview with Croatian news website Monitor.hr. "It's great to be No. 1 because people in the music industry need to give you credit for hard work."

Slipknot is celebrating the 10-year anniversary of the band, which got its start in 1999 with its self-titled debut. The group returned to the road in late January after a four-year hiatus, during which time lead singer Corey Taylor and guitarist Jim Roots joined forces in alt-metal act Stone Sour, and drummer Joey Jordison played with Korn and Ministry.