Black Spruce Tree Aerial of Black Spruce in a Frozen Bog in Superior National Forest During Winter by Pronghorn Productions in Forest , Landscape 4k (3840x2160) – $49 Full HD (1920x1080) – $39 HD (1280x720) – $29 Add to Cart Checkout Added to cart Aerial of Black Spruce in a Frozen Bog in Superior National Forest During Winter $29