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Email Us Welcome To Sandwich Conservation Trust The Sandwich Conservation Trust is a nonprofit 501c3 organization formed in 1985. About Us The Sandwich Conservation Trust is a nonprofit 501c3 organization formed in 1985 for the purpose of preserving natural or undeveloped land in the Town of Sandwich for habitat protection recreation and visual beauty. The Sandwich Conservation Trust is run by a volunteer board of directors assisted by members who help with projects or serve as property stewards for example. We are a member of the Land Trust Alliance a national organization and of the Cape Cod Compact of Conservation Trusts a regional group that provides us with technical assistance.