While the majority of the preserves are open, ACRES members also protect land that is not open to the public.

Most closed preserves are life estates, where a land donor lives and retains land use rights. Some preserves are closed to protect sensitive areas or natural features, or because trail installation is not possible.

Allen County


NameAcreage
Cedar Creek Bottoms Nature Preserve36
Cedar Creek Nature Preserve58
Chuck and Sharon Bodenhafer8
D and J Eel River22
Dorothy and Ray Garman Nature Preserve84
Ellenwood Nature Preserve4
Emanuel M. Popp Nature Preserve76
Emilian Woods11
Founders Forest59
James M. & Patricia D. Barrett Nature Preserve87
Jessie’s Woods Nature Preserve30
Little Cedar Creek Wildlife Sanctuary Nature Preserve19
Mackel Nature Preserve28
Maumee River Overlook1
Mills-Black Nature Preserve11
Orion Woods30
Raymond and Mildred Wetter Nature Preserve40
Shure Acre1

Blackford County


NameAcreage
Kenneth Goble Nature Preserve98

Defiance County, Ohio


NameAcreage
Preston Island23

DeKalb County


NameAcreage
Claxton Woods93
James M. & Patricia D. Barrett Oak Hill Nature Preserve140
Sliger Protected Land18

Elkhart County


NameAcreage
Caprarotta Family Natural Area29
Eby Bog10

Fulton County


NameAcreage
Steve Richie36

Huntington County


NameAcreage
Doerman Nature Preserve38
Little River Landing53
Victory Noll Acres107

Kosciusko County


NameAcreage
Wayne Township Property48

Lagrange County


NameAcreage
Marsh Wren Nature Preserve50
Draper32
Indian River Nature Preserve29
Martin Lake Nature Preserve5
Quog Lake126
Raber32

Miami County


NameAcreage
Walter H. and E. Marie Myers Nature Preserve on Flowers Creek157

Noble County


NameAcreage
Clock Creek35
Kate M. Raber and James R. Johnson62
Nevin Nature Preserve99
Sauga Swamp68
Tamarack Nature Preserve10

Paulding County, Ohio


NameAcreage
Black Swamp Audubon Sanctuary74
Dunakin Woods26

St. Joseph County


NameAcreage
Motts57

Steuben County


NameAcreage
Woodland Bog20
Koch Forest24
Lee Family Perfect Lake Nature Preserve84

Wells County


NameAcreage
Hurb and Francis Fuller Woods56
Peace Farm Nature Preserve24

Whitley County


NameAcreage
Kessler Nature Preserve1
Richey Woods Nature Preserve135

Williams County, Ohio


NameAcreage
Montpelier Woods14