This ancient riverbed is like few others. Nestled at the bottom of a valley, this age-old river, now dried and gone, spent centuries wearing at the earth. By happenstance, it eroded along a long vein of white, gray, and gold marble. The rock of this landscape gleams a pristine white, as milky as bone. It colors steep cliffs and smooth, shining boulders at the base of the valley, and occasional spurts shooting up from the dirt. In bright light, or late dusk, the stones gleam and give off an otherworldly glow.