The sky in Colorado is different from many other places. I think it’s a combination of the low humidity, high altitude and normally clean atmosphere. Every few minutes of every day, the sky changes, even when it is cloudless. Near noon in the winter, you get these amazing deep azure blue skies in the north, opposite the low sun. It’s reminiscent of noon in the summer in the high latitudes of the Baltic. Storms, sunsets, changes in pressure and mountain waves all produce amazing colors and forms that I will never get tired of looking at.
Stormy sky over Lone Tree 
The moon 
Hazy stratus clouds 
Typical day 
Dark blue sky 
Evening 
Light pillars 
Winter solstice afternoon 
Winter noon 
Deep blue/yellow sunset 
Clouds reflecting the colors of sunset 
The San Luis valley 
Purple and yellow sunset with contrasting trees 
Rosy sunset 
Clear view 
Hiking in the foothills 
Suomenlinna in Helsinki harbor 
Alexander Nevski cathedral in Tallinn, Estonia