- County: Monroe
- Acres: 134
- Acquired with gifts from: The Efroymson Fund, the Bicentennial Nature Trust, the Laura Hare Charitable Trust
- Years acquired: 2016, 2018
Dan Efroymson Preserve
Located in Sycamore’s Beanblossom Creek Bicentennial Conservation Area, this nature preserve protects important floodplain habitat and two miles of Beanblossom Creek. It borders the Sam Shine Foundation Preserve, creating a total contiguous protected area of 613 acres. The 22-acre Laura Hare Tract was added to the preserve in 2018.