Trout is the type of fish commonly found in the rivers of the Rocky Mountains.

Trout, including species such as rainbow, brook, and cutthroat trout, are prevalent in the rivers and streams of the Rocky Mountains. These fish thrive in the cold, clear waters of the region's mountainous landscapes. The diverse aquatic habitats, from alpine lakes to rushing mountain streams, provide ideal conditions for trout populations, making them a popular angler target. Fishing for trout is a beloved pastime in the Rockies, attracting local and visiting fishermen. Additionally, trout play a vital role in the ecosystem, serving as both predator and prey in these biodiverse environments.