The Mile High Music Festival will not bring the rock this summer.

The annual event will take a hiatus in 2011, promoter AEG Live plans to announce today. The two-day festival brought the Dave Matthews Band, Tom Petty, Tool, Jack Johnson, Widespread Panic and others to Commerce City over the past three years.

AEG is citing economic reasons for the break. “It was not an easy decision to put the festival on hold,” said Chuck Morris, president of AEG Live’s local offices. “We are really proud of the event, and we’re not ruling out the possibility of bringing it back in the future.”

The news of Mile High’s hiatus comes less than a month after three high-profile sellouts at other North American festivals, including the Coachella Valley Music and Arts Festival, another AEG Live event.

The Southern California-rooted Coachella sold a record 75,000 three- day passes in five days last month. Other record-setting 2011 sellouts include Miami’s electronic-heavy Ultra Music Festival and central Washington’s Sasquatch Festival, which moved 50,000 and 25,000 multiday passes, respectively.

But big numbers for more established music festivals aren’t a signal of automatic success for others. Many promoters are reeling from last year’s lackluster concert numbers. And for a youthful festival like Mile High, finding a successful musical fit can be a challenge, said Steve Knopper, a Denver-based Rolling Stone editor and author of the music industry tome “Appetite for Self-Destruction.”

Fans enjoyed a favorite band at the Mile High Music Festival in Denver last summer. Promoter AEG announced it will not hold the music festival this year. Photo by Christian Murdock, The Gazette