There is a reason that most couples today do not have a significant age difference. Consider that over the last one hundred years, the average age difference between married couples is 3.5 years.
The Colorado River flows from the Continental Divide in Colorado's Rocky Mountain National Park into the Gulf of California between the Baja California peninsula and mainland Mexico. Here, Snowmass Mountain looms above the Roaring Fork River, a tributary of the Colorado. Peter McBride.
Map-Colorado River Basin Free. As the United States' territory expanded to the west, the Colorado River briefly was considered a portal to the isolated frontier of the southwestern United States, since it was often cheaper to take a longer path via water to transport goods and people in the early 19th century.