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The Thumb Land Conservancy is working to preserve natural areas in the Thumb of Michigan a postglaciallandscape where northern forest blends with central hardwoods bordered by Lake Huron theSaginaw Bay the Saint Clair River and Lake Saint Clair. The mission territory of the TLC is SaintClair Sanilac Huron Tuscola Lapeer and Macomb Counties but we can also work in adjacentareas as opportunities arise. 2024 Annual Report Click the image below to opendownload the report 2023 Annual Report 2022 Annual Report 2021 Annual Report 2020 Annual Report 2019 Annual Report 2018 Annual Report 2017 Annual Report Latest News Update March 30 2025 The Thumb Naturalist Issue 2 see News page for more info The Thumb Land Conservancy was formed in 2008 to provide an organization dedicated to filling thegap of nature preservation in Michigans Thumb. Although much attention has been given to a fewareas near Lake Saint Clair the Thumb has been largely ignored.