South Nesson 3D Seismic Survey: Biological Evaluation and Aerial Raptor Nest Survey

Location: McKenzie and Williams Counties, SD

DESCO completed biological surveys and permitting for a proposed 170-square-mile 3D seismic project that included lands managed by the U.S. Forest Service (McKenzie Ranger District, Little Missouri National Grasslands), the North Dakota Department of Game and Fish, and the U.S. Army Corps of Engineers. DESCO conducted aerial surveys to document the nesting status of previously mapped raptor nests and identify locations of undocumented nests. Acquired data were used to establish setbacks from active nests during seismic operations. To comply with U.S. Forest Service management plans, DESCO also completed a comprehensive Biological Assessment/Biological Evaluation analyzing project effects on 18 ESA- and U.S. Forest Service-listed species.

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