The Sundial is a 7,590-foot (2,310-meter) elevation white Navajo Sandstone summit located in Zion National Park, in Washington County of southwest Utah, United States.

[2] The Sundial is situated in the "Towers of the Virgin", 2.5 mi (4.0 km) west of Zion's park headquarters, towering 3,600 feet (1,100 meters) above the floor of Zion Canyon and the Virgin River which drains precipitation runoff from this mountain.

This geographical feature was named by the park's third superintendent, Preston P. Patraw, because it had long been used as a sundial to regulate clocks in the nearby town of Grafton.

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.