DENVER – Coloradans will soon have more opportunities to enjoy live music. Officials with Red Rocks Amphitheater say they will soon hold live concerts for up to 2,500 people starting this spring and summer. The venue—which is owned and operated by the City and County of Denver— has been a popular destination for concert-goers for decades. In a tweet Tuesday, officials said more details are coming soon. Meanwhile, this summer will mark the 80th anniversary of Red Rocks Amphitheater.