$100.00 – $1,500.00
When I stood in this field of snow in Hayden Valley, the surface was a gentle, rolling expanse with big hills an eighth of a mile away. I thought of those hills as obstacles until I saw and followed this set of mouse tracks. The little three-inch-high bump on the snow was a significant terrain feature to him. In his explorations he must have thought, "Hmm, what's on the other side of this thing?"