Term: Van Hise Rock (Historic Marker Erected 1997)
off State Highway 136, on the northern edge of Rock Springs, along the Baraboo River, Sauk County
solitary outcrop of Baraboo quartzite which is for scientists the single most famous geological feature in the Baraboo Hills; this feature played a key role in the history of geology as Charles Van Hise (q.v.) used it to interpret the major structural features of the metamorphosed Precambrian rocks of the entire Wisconsin River Valley, or Baraboo District. It has long served and continues to serve as a hands-on field laboratory for professional geologists and students, and was recognized as a national historic landmark in 1999 with a formal dedication and roadside marker.
[Source: National Register]