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.
San Juan River. The most saline of the major Colorado River tributaries, the San Juan was named by the Spanish priests Dominguez and Escalante in 1776 as they circled the Colorado River Basin in search of a route to California.