Three Marys are three sandstone pillars in Zion National Park in Washington County, Utah, United States.

[3] Three Marys is situated immediately northwest of Springdale, Utah, and 1.5 mi (2.4 km) west of the park headquarters.

[2] Other neighbors include The Sundial, Altar of Sacrifice, Meridian Tower, Bee Hive, Bridge Mountain, The Watchman, and Mount Kinesava.

According to the Köppen climate classification system, it is located in a Cold semi-arid climate zone, which is defined by the coldest month having an average mean temperature below 32 °F (0 °C), and at least 50% of the total annual precipitation being received during the spring and summer.

This desert climate receives less than 10 inches (250 millimeters) of annual rainfall, and snowfall is generally light during the winter.