Understanding the contours of the landscape is essential for any hiker or climber. Contour lines on a topographic map connect points that share the same elevation, illustrating the 3D terrain on a 2D surface, like ridges and valleys.
Understanding the contours of the landscape is essential for any hiker or climber. Contour lines on a topographic map connect points that share the same elevation, illustrating the 3D terrain on a 2D surface, like ridges and valleys.