What does 'contour interval note' typically inform the user about on a map?

A contour interval note provides essential information about the vertical distance between contour lines on a topographic map. Each contour line represents a specific elevation, and the contour interval tells the user how much elevation change occurs between adjacent lines. For instance, if the contour interval is set at 10 meters, each line shows a rise or fall in elevation of 10 meters from the next. Understanding the contour interval is crucial for interpreting the terrain’s steepness, elevation, and overall landscape features, which can aid in navigation and planning for various activities such as hiking or land development.

The other options, while relevant to maps, do not pertain directly to the information conveyed by a contour interval note. The color scheme relates to the visual representation of land features, the scale gives a ratio of distance on the map to actual distance, and historical significance provides context about events or developments in the area, none of which involve the vertical measurement aspect of a topographic map.