The Continental Divide
3,000 miles long and up to 300 miles wide, this range stretches from Northern Alberta and BC in Canada down to New Mexico in the USA. This range includes several National parks on both sides of the border including Jasper, Banff, Yoho, Glacier, Yellowstone, Grand Teton, and Rocky Mtn NP in Colorado, which I lived near for over 20 years.
Other Mountains and Ranges
You may also find photographs taken in other mountain ranges such as the Sierra Nevada and even the Alps here. They will earn their own section if the work grows.