Pinnacle Mountain is a 1,011-foot (308 m) summit and the second-highest natural point in Pulaski County, Arkansas, United States; it is also the primary attraction of the 2,356-acre (953 ha) Pinnacle Mountain State Park. Located in the foothills of the Ouachita Mountains approximately 13 miles (21 km) northwest of downtown Little Rock, Arkansas, Pinnacle Mountain is one of the most iconic landforms of the U.S. Interior Highlands.

Pinnacle Mountain State Park is a 2,356-acre state park located in Pulaski County, Arkansas just outside of Little Rock. The main attraction is Pinnacle Mountain, an iconic landmark surrounded by the bottomlands of the Big Maumelle and Little Maumelle rivers.