Alder Stream Wilderness Preserve, a 7,292-acre property owned by Northeast Wilderness Trust, is protected with a forever-wild conservation easement held by Forest Society of Maine. The Preserve lies within one of the largest, most varied and intact freshwater wetland systems in Maine, supporting nearly 400 species of plants and at least 199 animal species and uncounted species of invertebrates. The Preserve abuts a 6,500-acre private tract, protected with a forever-wild easement by Sweet Water Trust and transferred to Northeast Wilderness Trust in 2021.
