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ENGINEERING TOPOGRAPHY (SURVEYING) ALTIMETRY - Relief - Level Curve http://psvideoaulas.com Video lesson that explains how to create level curves for graphical representation of the land nuances. Examples are performed of calculating the curves, but also to determine from existing contours slope in degrees and percentage and the elevation of an intermediate point between curves. ENGINEERING TOPOGRAPHY (SURVEYING) ALTIMETRY - Relief - Level Curve