UNION PACIFIC R.R. NEAR UTALINE, UTAH, MARCH 19, 2015
Sigma 18-250 f3.5-6.3 at 22mm
1/3200 sec. f4
All along the route of the California Zephyr as it threads its way past beetling cliffs, rock fences protect the train from piles of fallen boulders on the tracks ahead. When a stone punches its way through a wire, a red signal is tripped so that the engineer will stop the train before it strikes the rock.