This is an image of an early highway across the Snowy range in Wyoming, a northern extension of the Medicine Bow Mountains.
There is no caption on the back of this card. The inscription at the bottom states:
Highway over the Snowy Range, Wyoming
On can immediately tell from the primitive nature of the highway construction that this is an early road, not one of the later graded, paved, shouldered and marked highways which would soon follow.
This card likely dates from the 1940s.