The Ammonoosuc Conservation Trust is the North Country's first locally based, grassroots land trust.

ACT was founded in 1999 by a group of neighbors who shared a concern about the rapid loss of open lands in the western White Mountains. After successfully raising the funds to purchase a local property slated for subdivision, the group decided there was a need in the larger community for an institution that could assist in further protection of open lands in the area. They incorporated ACT in New Hampshire and obtained tax-exempt status from the IRS.

ACT is a completely volunteer, membership-based organization.