Mighty Acorns® is a program of Chicago Wilderness, a large coalition of conservation agencies and organizations that have pledged to work in concert to protect natural communities in the Chicago region and restore them to long-term viability. The overarching goals are to enrich the quality of life of citizens and contribute to the preservation of global biodiversity.

History Timeline
 
1993
The Nature Conservancy and Forest Preserve District of Cook County, Illinois, collaborate to develop Mighty Acorns.The curriculum, based on environmental education philosophy and core concepts, is developed and field tested by formal and non-formal educators and volunteer stewards.
1998
Chicago Wilderness identifies and adopts Mighty Acorns as a model program for guiding students through a comprehensive learning experience in environmental education.

Funding from the Grand Victoria Foundation enables Mighty Acorns to expand from Cook County to Will, DuPage, Kane, McHenry, and Lake Counties in Illinois, and northwestern Indiana.
1999
Summer Camp begins at Indiana Dunes Environmental Learning Center
2002
Initial funding for coordination ends. Mighty Acorns Partnership forms to provide oversight and coordination of the program throughout the region.
2004
Mighty Acorns® becomes a trademarked program.

2006

Nearly 20 conservation agencies throughout Chicagoland and northwest Indiana annually serve more than 8000 students in schools desiring to engage in stewardship education

Continued support from Chicago Wilderness and other funders, enables the partnership to continue to provide professional development for partners and summer camp for participating students.