Baraboo quartzite is a hard, metamorphic rock primarily found in the Baraboo Range of Wisconsin. Formed from sandstone over 1.6 billion years ago, it is known for its durability and distinctive colors, ranging from gray to reddish hues. This rock is often used in construction and landscaping due to its strength and aesthetic appeal. The Baraboo Range, where this quartzite is located, is a significant geological feature in the region. It is part of the larger North American geological history and provides insights into ancient environments. The quartzite also supports various ecosystems, making it an important natural resource.