What is the name of the famous canyon in Utah, USA, known for its steep red rock walls?

What is the name of the largest fjord in the Arctic? What is the name of the famous canyon in Arizona, USA? In which state is the Palo Duro Canyon located? In which country is the Taroko Gorge canyon located? In which state is the Black Canyon of the Gunnison located? What is the name of the famous canyon in Arizona, USA, known for its blue-green waters? In which country is the Fish River Canyon located? Which canyon is known for its unique hoodoos rock formations?