Slover Mountain, Limestone mountain in Colton, San Bernardino County, United States.

Slover Mountain is a rounded limestone hill in Colton, in southwestern San Bernardino County, California. It was surface mined for limestone in the 20th century, and its blunt, rocky mass now rises behind a long, low industrial complex. Before mining, it stood 1,184 feet (361 m) tall, the highest point in the San Bernardino Valley.

The hill is named for Isaac Slover, a hunter who lived nearby in the 19th century. He died in 1854 in the Cajon Pass from injuries caused by a bear. Before mining, it was the tallest peak in the San Bernardino Valley at 1,184 feet (361 m). The Colton Liberty Flag once stood on its summit.

Native people called this peak Tahualtapa, meaning raven hill. Spanish settlers later named it Cerrito Solo, which translates to solitary little hill.

The area is mostly private property and on-foot access is limited or restricted. Visitors should check local conditions and ask about possible viewing points before planning a trip to the site.

Before quarrying, Slover Mountain was the tallest point in the San Bernardino Valley at 1,184 feet (361 m); today the remaining hill stands about 386 metres above sea level. The Colton Liberty Flag once flew from its summit, and a Colton Joint Unified School District continuation high school now carries the mountain's name.