This bull had just lost a fight over a harem of cows and headed for the hills.
His rack was larger than that of the opponent, but the opponent's body was larger and that is where the battle strength comes from.
Capturing this image was primarily a matter of repeatedly getting out in front of the bull and properly predicting where it would enter a clearing at the right distance for the big prime lens I was using.
As you will notice from the camera settings for this image, it was quite dark when this image was captured.
The pursuit started under cloudy weather that deteriorated into light rain.
I still have one opening remaining for the September elk in rut photo tour
in Rocky Mountain National Park (or get on the 2020 waiting list).
Consider joining a small group of photographers (all skill levels welcome) pursuing these awesome animals and other wildlife and landscape opportunities in this great park!
A larger version of this image is available on Flickr