Prog-metal rockers Dream Theater [ tickets ] will return to the road this summer for another round of "Progressive Nation" tour dates.

The late-summer outing kicks off July 24 in Miami, stopping by theaters in 18 cities across the nation, including a six-date Canadian run in mid-August. The trek finishes up Aug. 29 at Los Angeles' Greek Theater. Details are below.

Special guests Queensryche will take part in the performance Aug. 1 in Columbia, MD, according to Dream Theater's website, and the itinerary is expected to expand in the coming weeks.

Based on the festival/package-tour concept, the "Progressive Nation" tour will also include tribute act Zappa Plays Zappa and Swedish outfits Pain of Salvation and Beardfish. A European leg alongside Opeth, Bigelf and Unexpect is slated for the fall.

Dream Theater--which has been around for nearly three decades and has had a handful of songs make it into mainstream rotation--still maintains a grassroots following. The band's 10th studio album, "Black Clouds & Silver Linings," will surface June 23 on Roadrunner Records. Along with the standard CD, the effort will also be available as a vinyl LP and as a three-disc special-edition package with the full album, as well as a disc of instrumental mixes and one of six cover songs, the titles of which will be revealed at a later date.