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Protecting land has always been at the core of The Nature Conservancy’s (TNC) mission, starting in 1954 with 60 acres in the Mianus River Gorge.  Since then, the Eastern Division of The Nature Conservancy has directly contributed to the protection of another 59.9 million acres of land in 18 states, based on strong conservation science and data.
Land protection priorities are defined by a science-based approach using ecoregional assessments, and refined by an analysis of climate resilience.  Ecoregional assessments provide a biodiversity-based context that defines a regional vision for conservation success. In the face of a changing climate, the resilience analysis identifies the land areas that will maintain a high level of biological diversity and ecological integrity. The ancillary products created for completion of these assessments, such as ecological land units, landforms, and terrestrial habitat map, are critical tools to augment our knowledge about the biotic and physical world.  
To directly download data, go to the maps & spatial data page.

 Recent Work