A rocky hill rises above the surrounding landscape at Palo Duro Canyon, Texas.
Park Road 5 descends more than 800 feet to the bottom of Palo Duro Canyon, Texas.
A road leads to the distant horizon in the Texas Panhandle near Canyon.
Montmorency Falls near Québec City, Canada.
Trees on a ridge in Irving, Texas, bare of leaves for the winter.
The dawn sky as seen from a power line right-of-way in Tyler, Texas.
A cable car carries tourists to the top of Québec’s Montmorency Falls.