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Farm Creek Section

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Farm Creek Section
Steep wooded slope rising above creek
Looking downstream along Farm Creek; the geological exposure is in the eroded hillside at left.
Farm Creek Section is located in Illinois
Farm Creek Section
Nearest cityEast Peoria, Illinois
Area15 acres (6.1 ha)
NRHP reference No.91002039
Significant dates
Added to NRHPFebruary 6, 1992[1]
Designated NHLDecember 9, 1997[2]

The Farm Creek Section, also known as the Farmdale Geologic Exposure, is a hillside near East Peoria, Illinois that clearly showed geological strata. It is nationally significant as one of the first exposed glacial stratifications in the United States. These Ice Age geological formations, with rock layers representing different periods of glaciation, had long been known and published in England, France, and Germany, but were not yet well known in North America. Geologist Frank Leverett discovered this exposed face of a hill with its clearly defined stratifications in 1879 and described and pictured it in his monograph, The Illinois Glacial Lobe, in 1899.

The Farm Creek publication gave a name to the Illinoian glaciation, the southernmost penetration of glacial ice into what was to become the Midwestern United States. It also helped formulate regional and national stratigraphic classifications and has figured prominently in the study and development of glacial geology.

The Farm Creek Section was declared a 15 acres (6.1 ha) National Historic Landmark in 1997.[2][3]

The site is on the south side of Farm Creek (a tributary of the Illinois River) in the Farm Creek Recreation Area, south of Illinois Route 8 (Washington St.) and between School Street and Bittersweet Road, and is accessible by following an unpaved road, part of which is an abandoned right of way formerly in use by the Toledo, Peoria and Western Railroad.[3]

Approximate UTM border of Farm Creek Section[3]
Point Zone Easting Northing Longitude/Latitude
A 16N 289700 4505760 40°40′33″N 89°29′18″W / 40.67592°N 89.48828°W / 40.67592; -89.48828 (Farm Creek Section point A)
B 16N 289700 4505620 40°40′33″N 89°29′18″W / 40.67592°N 89.48828°W / 40.67592; -89.48828 (Farm Creek Section point B)
C 16N 289460 4505640 40°40′29″N 89°29′28″W / 40.67478°N 89.49108°W / 40.67478; -89.49108 (Farm Creek Section point C)
D 16N 289440 4505820 40°40′35″N 89°29′29″W / 40.67640°N 89.49138°W / 40.67640; -89.49138 (Farm Creek Section point D)

References

  1. ^ "National Register Information System". National Register of Historic Places. National Park Service. January 23, 2007.
  2. ^ a b "Farm Creek Section". National Historic Landmark summary listing. National Park Service. Retrieved 2007-10-08.
  3. ^ a b c Joanne Kluessendorf and Kira Badamo (August 20, 1991). "National Historic Landmark Nomination: Farm Creek Section / Farm Creek/Farmdale Geologic Exposure" (pdf). National Park Service. {{cite journal}}: Cite journal requires |journal= (help). Template:PDFlink
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