The photos do not show, but the petals are light blue. Is this some sort of anthemis?
SOLVED: ID help, please.
Ok- these are what I see, but up to you to chase down, you can see the plant!
Blue Aster Oblonifolius ' Raydens Favorite', Aster Fendleri, Smooth Blue Aster-Aster laevis, see if those help