Originally posted by RICHARD L. I had the opportunity to stop for a short period on this stretch of Interstate-70 in the Rocky Mountains of Colorado so I could take this picture. What a feat of road engineering this is, a highway built along and over a river in a winding canyon. Picture taken with a Canon G3X. Notice the slow shutter speed, this is due to the presence of a built-in Neutral Density filter that blocks part of the incoming light.
Brought back memories, we have passed thru here on a road trip.