Close-up of animal tracks in fine ash, Valley of Ten Thousand smokes. Katmai National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.katm0114.html Caribou footprints and ripples in the Great Sand Dunes. Kobuk Valley National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kova4379.html Sand, fence, and animal tracks, Cape Cod National Seashore. Cape Cod, Massachussets, USA http://www.terragalleria.com/america/massachusetts/truro-ma/picture.usma45685.html Animal tracks in the sand, Race Point Beach, Cape Cod National Seashore. Cape Cod, Massachussets, USA http://www.terragalleria.com/america/massachusetts/provincetown-ma/picture.usma45665.html Backpacker follow bear tracks, Valley of Ten Thousand smokes. Katmai National Park, Alaska http://www.terragalleria.com/mountain/mountain-image.katm0109.html Animal tracks on the Great Sand Dunes. Kobuk Valley National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kova4380.html Valley with animal tracks in ash, Valley of Ten Thousand smokes. Katmai National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.katm0115.html Animal tracks in ash, Valley of Ten Thousand smokes. Katmai National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.katm0065.html Caribou tracks and ripples in the Great Sand Dunes. Kobuk Valley National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kova4377.html Big bear tracks in the ash, Valley of Ten Thousand smokes. Katmai National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.katm0110.html Caribou tracks and ripples in the Great Sand Dunes. Kobuk Valley National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kova4378.html Bear tracks, Naknek lake. Katmai National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.katm0091.html Bear tracks on the shore of Naknek lake. Katmai National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.katm0148.html