Final answer:
A topographic map is a geographical representation of a region's terrain in three dimensions using contour lines to denote elevation. These maps provide detailed insights into the Earth's surface and are used for various planning and recreational activities.
Step-by-step explanation:
What is a Topographic Map?
A topographic map is a geographical representation of a region that includes the third dimension of elevation. These maps are characterized by contour lines, which are imaginary lines that connect points of equal elevation above sea level. Therefore, a topographic map provides detailed information regarding the shape of the Earth's surface including hills, valleys, and other terrain features. Such maps are valuable for a variety of applications including urban planning, construction, landscaping, and outdoor activities like hiking.
Topographic maps were historically significant products of organizations like the USGS and have continued their utility through modern mapping technology, such as Geographic Information Systems (GIS). They enable users to visualize the Earth's surface and understand the spatial relationships of its features, which can be invaluable for recognizing areas prone to geologic hazards like landslides and flooding.