What is a collar in the context of topographic maps?

In the context of topographic maps, a collar refers specifically to the white border that surrounds the map. This collar typically contains important information about the map, such as the title, scale, legend, coordinates, and other essential details that provide context and assistance for understanding the geographic area represented. The inclusion of this information is crucial for users to interpret the map accurately and to serve as a quick reference for important features.

While the other options relate to elements important in map reading and representation, identifying the collar as the white information-filled border is accurate and highlights its role as a vital component of the overall map layout. The collar enhances usability by ensuring key details are readily accessible, thus improving the user’s ability to effectively navigate and analyze the topographic information presented on the map.