|Location||Brazeau Township, Perry County, Missouri|
|Nearest city||Wittenberg, Missouri|
|NRHP reference #||70000344|
|Added to NRHP||February 26, 1970|
Tower Rock, also known as Grand Tower, is a rock formation and landmark island in the Mississippi River, in Brazeau Township, Perry County, Missouri, near the town of Wittenberg, Missouri, and across the river from Grand Tower, Illinois. It was listed on the National Register of Historic Places in 1970.
The earliest mention by Europeans of this island is by French missionary Jacques Marquette in 1673:
...we found ourselves at a river called ouaboukigou, The mouth of which is at the 36th degree of latitude. Before reaching it, we passed by a Place that is dreaded by the Savages, because they believe that a manitou is there, — that is to say, a demon, — that devours travelers; and The savages, who wished to divert us from our undertaking, warned us against it. This is the demon: there is a small cove, surrounded by rocks 20 feet high, into which The whole Current of the river rushes; and, being pushed back against the waters following It, and checked by an Island near by, the Current is Compelled to pass through a narrow Channel. This is not done without a violent Struggle between all these waters, which force one another back, or without a great din, which inspires terror in the savages....
Another early mention of the rock was by French-Canadian seminarian priests: fathers Montigny, Davion and St. Cosme, who planted a cross on the rock in 1698.
A ridge directly across the river from the island is named Devil's Backbone.
Meriwether Lewis mentions the island in his journals, stating that rivermen who passed the rock would celebrate in a way similar to sailors crossing the equator, by raising a drink of spirits.
In a Nov. 6, 2003, article in the Southern Illinoisan newspaper, Mike Keeley, manager of the Tower Rock National Historic Site for the Missouri Department of Conservation, said that it's possible to walk out to Tower Rock every year or so because of low water levels on the river.
- National Park Service (2009-03-13). "National Register Information System". National Register of Historic Places. National Park Service.
- Tower Rock, Sentinel of the Mississippi https://www.academia.edu/3546739/Tower_Rock_Sentinel_of_the_Mississippi
- Charla A. Pigott (November 1969). "National Register of Historic Places Inventory Nomination Form: Tower Rock" (PDF). Missouri Department of Natural Resources. Retrieved 2017-02-01.
- Louis Houck (1908). "A History of Missouri: From the Earliest Explorations and Settlements Until the Admission of the State Into the Union".