Near Wausau in Marathon County, Wisconsin — The American Midwest (Great Lakes)
Rib Mountain State Park
Photographed By Keith L, June 8, 2008
1. Rib Mountain State Park Marker
Inscription.
Rib Mountain State Park. . This park is located on the summit of Rib Mountain, one of the most prominent isolated hills in Wisconsin. Just as the stump covered field enables us to picture the forest that has long since been cut – so by the study of the old worn down stumps of mountains, the geologist is able to picture the mountains that once covered all of Wisconsin. During countless ages these mountains were gradually worn down to a plain. In a few places a harder ridge or peak called a monadnock still rises considerably higher than the general level of the plain. Rib Mountain, the highest rock hill in the state, is such a monadnock rising to a height of 1940 feet above the sea and nearly 800 feet above the Wisconsin River. , The rock was originally a sandstone that has been thoroughly cemented to form a hard glass like rock called quartzite. Ripple marked slabs indicate that the original constituents were loose sand washed by waves. The original sand stone bedding was horizontal. Later folding resulted in the present nearly vertical position of the quartzite beds. Rib Mountain is a monadnock which owes its superior elevation to the fact that it is composed of quartzite and was therefore suffered less erosion than the quartzite which surrounds it. The quartzite crags and the talus slopes indicate that the park was not glaciated.
This park is located on the summit of Rib Mountain, one of the most prominent isolated hills in Wisconsin. Just as the stump covered field enables us to picture the forest that has long since been cut – so by the study of the old worn down stumps of mountains, the geologist is able to picture the mountains that once covered all of Wisconsin. During countless ages these mountains were gradually worn down to a plain. In a few places a harder ridge or peak called a monadnock still rises considerably higher than the general level of the plain. Rib Mountain, the highest rock hill in the state, is such a monadnock rising to a height of 1940 feet above the sea and nearly 800 feet above the Wisconsin River.
The rock was originally a sandstone that has been thoroughly cemented to form a hard glass like rock called quartzite. Ripple marked slabs indicate that the original constituents were loose sand washed by waves. The original sand stone bedding was horizontal. Later folding resulted in the present nearly vertical position of the quartzite beds. Rib Mountain is a monadnock which owes its superior elevation to the fact that it is composed of quartzite and was therefore suffered less erosion than the quartzite which surrounds it. The quartzite crags and the talus slopes indicate that the park was not glaciated.
Topics. This historical
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marker is listed in this topic list: Natural Features. A significant historical year for this entry is 1940.
Location. 44° 55.206′ N, 89° 41.622′ W. Marker is near Wausau, Wisconsin, in Marathon County. Marker can be reached from Park Road west of County Highway N. Marker is near the concession stand in Rib Mountain State Park (fee area). Touch for map. Marker is at or near this postal address: 4200 Park Road, Wausau WI 54401, United States of America. Touch for directions.
The dense hard rock forming Rib Mountain is called quartzite. It was originally loose sand but was changed first to sandstone by cementing of the sand grains and then to quartzite by Earth movements and fluids which compressed and hardened the rock.
Credits. This page was last revised on August 5, 2021. It was originally submitted on February 22, 2009, by Keith L of Wisconsin Rapids, Wisconsin. This page has been viewed 1,162 times since then and 38 times this year. Photos:1, 2, 3. submitted on February 22, 2009, by Keith L of Wisconsin Rapids, Wisconsin. • Kevin W. was the editor who published this page.