Where is Grand Staircase–Escalante National Monument?

A Nevada
B Utah
C Arizona

The Grand Staircase–Escalante National Monument contains an expanse of stunning rock formations in southern Utah, providing a playground for nature enthusiasts. The monument, established in 1996, spans more than 7,500 square kilometres, and is surrounded by other famous parks including Capitol Reef, Bryce Canyon, Glen Canyon and Grand Canyon.

The correct answer is Utah.