* Contour Lines: These lines connect points of equal elevation. They would show a closed loop representing the crater rim, with higher elevation values inside the loop than outside.
* Spot Elevations: Numbers indicating the exact elevation at specific points. These would be placed inside the crater to show its depth and potentially on the rim to indicate its height.
* Depression Contours: These are hachures (short lines perpendicular to the contour line) that indicate a depression in the terrain. They would be placed inside the crater to show its downward slope.
* Other Landforms: The map might also show other volcanic features like lava flows (represented by contour lines with a specific symbol) or volcanic cones (similar to the crater, but potentially with a wider base).
Example:
Imagine a topographic map with contour lines showing a hill. Inside the hill, there's a closed loop of contour lines with higher elevation values inside than outside, indicating the crater rim. The crater's interior would have depression contours, indicating its downward slope. A spot elevation inside the crater would reveal its depth.
Remember, the specific details on the map would depend on the scale and purpose of the map, but these elements are essential for depicting a volcanic crater on a topographic map.
