 It is one of the best-exposed parts of the Baraboo Range, a ring of quartzite hills that passes through Columbia and Sauk Counties.The quartzite in the range was formed as sandstone during the Precambrian Supereon; then a greenschist phase changed it to quartzite.The monolith is located in a wayside on Wisconsin Highway 136, about 3/4 mile north of the intersection with Wisconsin Highway 154 near the village of Rock Springs.