Illinois

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The Nature Conservancy in Illinois

The Nature Conservancy is the leading conservation organization working around the world to protect ecologically important lands and waters for nature and people. We work to protect nature and preserve life in the Prairie State. Have a question for The Nature Conservancy in Illinois? Contact Us!

Contact our Illinois Offices

Chicago Office
8 South Michigan Avenue, Suite 900
Chicago, Illinois 60603
Phone: (312) 580-2100
Fax: (312) 346-5606
E-mail: illinois@tnc.org

Peoria Office
301 SW Adams St, Suite 1007
Peoria, Illinois 61602
Phone: (309) 636-3300
Fax: (309) 673-8986

Illinois River Project Office
11304 N. Prairie Road
Lewistown, Illinois 61542
Phone: (309) 547-2730
Fax: (309) 547-2731

Southern Illinois Field Office
0139 Rustic Campus Drive
Ullin, Illinois 62992
Phone: (618) 634-2524
Fax: (618) 634-9656

Nachusa Grasslands
8772 S. Lowden Road
Franklin Grove, Illinois 61031
Phone: (815) 456-2340
Fax: (815) 456-2342

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Volunteer

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Places We Protect

The Nature Conservancy and its partners have protected more than 100 sites in Illinois. Visit our preserves