Driving from Denver, Colorado on I-70, US 6 veers of just before the Eisenhower Tunnel. Unless you drive that stretch on your daily commute I suggest you take the detour through Loveland Pass, Arapahoe Basin Ski Area, Keystone, and loop back to I-70 at Dillon.
In this photo you can see the view from the Loveland Pass located at 11,990 feet (3,655 meters) in the Rocky Mountains of Colorado. It sits on the Continental Divide. Since the Eisenhower Tunnel opened in 1973 the pass does not get as much traffic since most through traffic remains on I-70. However, I-70 does not come even close with the views.
A continental divide is a drainage divide of a continent. Water on one side drains into one ocean or sea and into another on the other side. The divide passing through Loveland Pass is sometimes also called the Great Divide separating the Atlantic and the Pacific watershed. It runs from Alaska south to the tip of South America.
Sources:
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Loveland Pass on Wikipedia-
Continental DIvides on Wikipedia-
North American Water Divides