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Federal
Viewsheds from Key Observation Points for Badlands National Park (BADL)
Department of the Interior —
Visibility viewsheds incorporate influences of distance from observer, object size and limits of human visual acuity to define the degree of visibility as a... -
Federal
Digital Surficial Geologic-GIS Map of Isle Au Haut and Immediate Vicinity, Acadia National Park, Maine (NPS, GRD, GRI, ACAD, ISHA_surficial digital map) adapted from a Maine Geological Survey Open-File Map by Borns, Smith and Thompson (1974)
Department of the Interior —
The Digital Surficial Geologic-GIS Map of Isle Au Haut and Immediate Vicinity, Acadia National Park, Maine is composed of GIS data layers and GIS tables, and is...