Schoonmaker Reef

Also known as: Wauwatosa Reef, Schoonmaker Quarry, Raphu Station, Francey Reef
N of West St., between N. 66th St. and N. 64th St. extended, Milwaukee, Wisconsin

Map 

Description 

This Landmark is a 425-million-year-old fossil reef, one of the first recognized as such in the United States in 1862. Professional geologists used data collected from the reef to formulate theories fundamental in the study of geology. -- National Historic Landmark statement of significance, September 25, 1997

National Register information 

Status
Posted to the National Register of Historic Places on September 25, 1997
Reference number
97001266
Area of significance
Science
Level of significance
National
Evaluation criteria
A - Event; B - Person
Property type
Site
Historic functions
Natural feature; Extractive facility
Current function
Natural feature
Periods of significance
1825-1849; 1850-1874; 1875-1899; 1900-1924; 1925-1949
Significant years
1862; 1877; 1903