river fog Bison Immature Herd Many Walking in Winter River Fog in Wyoming by Pronghorn Productions in Bison , Mammal , Ungulate 4K (3840x2160) – $59 Full HD (1920x1080) – $49 HD (1280x720) – $39 Add to Cart Checkout Added to cart Bison Immature Herd Many Walking in Winter River Fog in Wyoming $59