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WorldView 2 satellite imagery acquired from Maxar through the NGA NextView program and PlanetScope satellite imagery from Planet Labs were used to map these areas.Due to late imagery acquisition, SuperView Neo 1 imagery from SpaceWill and PlanetScope satellite imagery from Planet Labs were used to supplement the aerial imagery for the upper Potomac River, including Nanjemoy Creek. PlanetScope imagery was also used to supplement the aerial imagery for the Pamunkey and upper Rappahannock Rivers and WorldView 2 satellite imagery acquired from Maxar through the NGA NextView program was used to supplement the aerial imagery for the Big Annemessex, Manokin, and Little Choptank Rivers, and Pocomoke and Tangier Sounds, as well as the Chesapeake Bay Eastern Shore from Hungars Creek to Onancock Creek.Due to turbid conditions, WorldView 2 satellite imagery acquired from Maxar through the NGA NextView program was used to supplement the aerial imagery for the Corrotoman, Piankatank, and lower Rappahannock Rivers, and Mobjack Bay.WorldView 2 satellite imagery acquired from Maxar through the NGA NextView program was used to supplement the aerial imagery for the Back, Bush, Gunpowder, Middle, Patapsco, and Sassafras Rivers, and the Susquehanna Flats", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 102100, "latestWkid": 3857, "xyTolerance": 0.001, 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