A keystone species died in the iconic Rocky Mountain National Park after the apex predator ... late 1800s as western settlers began hunting elk and deer — common food sources for the species ...

Average annual temperature increase over the last century in the high-elevation park from climate change Rocky Mountain National ... wintering grounds for elk which migrate in and out of the park.

The park's wildlife, which includes elk, bighorn sheep and moose, roam the verdant forests and glittering lakes, guaranteeing that every trip to Rocky Mountain National Park will be memorable.