This was part of a band of horses that was racing two others in Sand Wash Basin in northwestern Colorado. My wife and I had spotted a cloud of dust on the horizon and knew that meant horses on the move. We hurried along, working our way to a point to intercept them.
It was awesome watching them thunder across the terrain throwing up dust, their manes flowing in the wind. With so many horses running by on both sides of us, it was hard to know what to try to focus on for pictures.
I opted for the horses that were coming over a slight rise behind us and captured this shot of three adults and a young one. By then the air was already filled with dust from other horses that had raced by but I think it somewhat adds to the image.