Together the Stirling , Wood Canyon , and Zabriskie units are about 6,000 feet ( 1,800 m ) thick .
Together the Stirling , Wood Canyon , and Zabriskie units are made of well - cemented sandstones and conglomerates .
Together the Stirling , Wood Canyon , and Zabriskie units are about 6,000 feet ( 1,800 m ) thick and are made of well - cemented sandstones and conglomerates .