Blue Mounds State Park is a state park of Minnesota, USA, in Rock County near the town of Luverne. It protects an American bison herd which grazes on one of the state's largest prairie remnants. The state park is named after a linear escarpment of Precambrian Sioux Quartzite bedrock, which although pink in color, is said to have appeared blueish in the distance to early settlers. Parts of the cliff are up to 100 feet (30 m) high. Unusual in the surrounding prairie landscape, they are a popular site for rock climbing.