Blue Mounds State Park
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Blue Mounds State Park is a state park in Rock County, Minnesota, United States, near the town of Luverne. It protects an American bison herd which grazes on one of the state's largest prairie remnant
Sioux Quartzite bedrock in Blue Mounds State Park
Upper Dam and Upper Mound Lake, constructed 1938
Bison herd in the park in spring
The Frederick Manfred House
Sioux Quartzite
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The Sioux Quartzite is a Proterozoic quartzite that is found in the region around the intersection of Minnesota, South Dakota, and Iowa, and correlates with other rock units throughout the upper midwe
Sioux Quartzite at Falls Park, Sioux Falls, South Dakota
Cross-bedding in the Sioux Quartzite, Blue Mounds State Park, Minnesota, United States.
The Federal Building in Sioux Falls, South Dakota was constructed with Sioux quartzite from nearby quarries.
Dell Rapids Water Tower, South Dakota