Topographical maps are detailed representations of terrain that include various features. Here are three types of marginal information typically found on topographical maps:
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Scale Information: This includes the map scale, which indicates the ratio of distance on the map to the actual distance on the ground (e.g., 1:50,000). It may also include a graphical scale bar that helps users estimate distances directly on the map.
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Legend/Key: The legend explains the symbols and colors used on the map, providing information about various features such as roads, trails, water bodies, elevation contours, vegetation types, and land use.
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Grid Reference System: This is often a coordinate system (like latitude and longitude or UTM) that helps users locate specific points on the map. Marginal information may include a grid overlay to assist in navigation and orientation.
These elements enhance the map's usability, allowing for better interpretation and navigation in the real world.