Holt Research Forest

The site of long-term forest ecosystem research in Arrowsic, Maine. Maine TREE acquired the 350-acre property in 2014 through a merger with the Holt Woodland Research Foundation.

Forest Ecology Research Network

FERN combines the best of Project Learning Tree’s (PLT) curriculum with standard forest data collection protocols to provide community scientists with the tools they need to answer questions they have about the Maine Woods.