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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>OS MasterMap Topography Layer contains features that represent objects in the physical environment, such as buildings, fields, fences, and letter boxes. It also includes intangible objects, such as county boundaries and the lines of mean high or low waters.</SPAN></P><P><SPAN>Individual real-world topographic features are represented by points, lines, and polygons, each with their own unique reference, called a topographic identifier (TOID). Each uniquely referenced feature has attribution that provides information about the real-world object it represents and metadata that tracks changes to the feature’s lifecycle.</SPAN></P><P><SPAN>This is the most detailed and frequently maintained basemap product we hold. </SPAN></P></DIV></DIV></DIV> |