WMS:TR-20 Area

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When a TIN, DEM, or Map-based model is present, basin areas and slopes can be computed automatically using the Compute Basin Data command in the TIN or DEM Drainage module menus, or in the Feature Objects Map module menu. If a TIN, DEM, or map data are not present, areas and slopes must be entered interactively using the topological tree as a map. Areas should be entered in square miles.

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