Volunteers - Rocky Mountain National Park: Elk Jam

A yellow-vested volunteer walks in the middle of Trail Ridge Road as he works to keep traffic moving past a herd of elk. The road is the highest continuous highway in the United States. The two-lane road is popular with visitors but when elk are spotted, it can create a high-altitude traffic jam.
Elk Jam, Estes Park, Colorado

A yellow-vested volunteer walks in the middle of Trail Ridge Road as he works to keep traffic moving past a herd of elk. The road is the highest continuous highway in the United States. The two-lane road is popular with visitors but when elk are spotted, it can create a high-altitude traffic jam.