contour-map
Noun: A contour map is a type of topographic map that uses lines to connect points of equal elevation on the Earth's surface. These lines, called contour lines, illustrate the shape and steepness of terrain, such as hills, valleys, and slopes.
- (They relied on the map's elevation lines to find safe routes.)
- (They analyze the terrain's shape using the map's lines.)
- (The map depicts elevations below sea level.)
"to read a contour map": to interpret the elevation lines to understand terrain features.
- Learning to read a contour map is essential for orienteering. (Understanding the lines helps navigate in the wilderness.)
"contour interval": the vertical distance between adjacent contour lines on the map.
- This contour map has a small contour interval, showing fine details of the hill. (The lines are closely spaced to reveal subtle changes in elevation.)
Contour line (n): a line on a map connecting points of equal elevation.
- Each contour line on the map represents a specific height above sea level. (The line marks a constant elevation.)
Topographic map (n): a detailed map showing natural and man-made features, including elevation via contour lines.
- A topographic map is often the same as a contour map. (It includes contour lines for elevation.)
- Topographic map: a map that shows physical features of the land using elevation lines.
- Relief map: a map that emphasizes the shape of the land surface, often using shading or color.
"Follow the contours": to adapt to the natural shape or flow of something.
- The architect designed the house to follow the contours of the hillside. (The building fits the land's shape.)
"On the map": to be important or well-known (not directly related to contour maps, but a common idiom using "map").
- The discovery of gold put the small town on the map. (The town became famous.)