noun
topographic map; elevation map
A map that shows terrain features such as elevation, contours, and landforms. Used in geography, hiking, and civil engineering.
登山の前に地形図でルートを確認した。
Before the climb, I checked the route on a topographic map.
この地形図は等高線が細かく描かれている。
This topographic map has finely drawn contour lines.
等高線 are contour lines, a key feature of 地形図.
Compound of 地形 (terrain) and 図 (map, diagram).