Monkman Penobscott Hiking D30544


When we think of Maine we picture vast, rugged landscapes on the grandest scale — and OSI is working to ensure it stays that way.

Since 2002, we’ve conserved 8,576 acres, and made grants and loans totaling $19 million, which have helped the state’s conservation groups and agencies protect an additional 1,352,720 acres.

Our unique approach to grantmaking has helped preserve huge tracts of divested timberland and miles of shoreline on the Penobscot River. We’ve also supported the creation of the nation’s largest community forest, as well as the innovative conservation of wildlife corridors across the US-Canada border.

Building on this success, in 2016 we expanded our playbook by taking a leading role in the direct acquisition of 8,700 acres in the Pine Tree State.

What You Can Do

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