Yes some bands got their start in Colorado. Big Head Todd and the Monster, The Fray, One Republic, John Denver, Jesse Carmichael from Maroon 5 and Glenn Miller.
People I would like you to notice that should be added to you lists are Tyler Ward.
Graduated from University of Northern Colorado for something other than music, his album The Show is worth picking up and here is a little sample.
According to one of his videos he is a neighbor of Alex G.
Her EP Hello is worth picking up as well as her collaborations.
A group I have previously talked with Broken Tongues.
And a Congrats goes out to Mad Dog & Headman. Tonight They will be having a CD release party at the Skylite Station in Denver.
Enjoy these special Colorado People.