A bison cow and calf walk through a field of grass along the shores of the Firehole River as steam rises from thermal features behind. Captured with a Canon 5D II and 70-200/2.8L IS II in aperture priority mode with an exposure bias of + 2/3 at ISO400, f/7.1, and 1/400th of a second. The camera was handheld.

A bison cow and calf walk through a field of grass along the shores of the Firehole River as steam rises from thermal features behind. Captured with a Canon 5D II and 70-200/2.8L IS II in aperture priority mode with an exposure bias of + 2/3 at ISO400, f/7.1, and 1/400th of a second. The camera was handheld.