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Isolated wetlands are ecologically important freshwater ecosystems that occur frequently throughout the Atlantic coastal plain ecoregions of North America. Known to support 86 species recognized by the US Fish and Wildlife Service as threatened or endangered, isolated wetlands are a conservation priority in the United States and elsewhere. They are often obscure and methods to detect them at the spatial scales necessary for systematic conservation planning and forest management have been time consuming, cost ineffective, or too coarse-filter. To fill existing information gaps and develop a repeatable, high-resolution methodology, we subjected LiDAR elevation data to custom relief models designed to elucidate fine-scale geomorphology, specifically small, localized changes in concavity, as a location predictor. Because fine grain size and large spatial extent can impose processing limits in landscape-level …