Bull elk (Cervus canadensis) standing in a stream, Rocky Mountain National Park, Colorado, United States of America, North America

animals antler bull bull elk cervus canadensis color image colorado day elk environment head and shoulders national park nature nobody north america one animal outdoors photography rocky mountain side view standing stream travel travel destinations united states vertical wading wildlife america american americas animal cattle co color colour creek daytime horn mid west outside park us usa united states of america us usa wade water