Complex sentence: The Markagunt Plateau is an 800 square mile plateau located in the southwest corner of Utah between I15 and UT 89, it encompasses Cedar Breaks National Monument and part of Zion National Park.
Split into simpler sentences: The Markagunt Plateau is an 800 square mile plateau located in the southwest corner of Utah between Interstate 15 and Utah State Route 89. It encompasses Cedar Breaks National Monument and part of Zion National Park.