Commonly, elevations are referenced to mean sea level.

More Questions from Landform Drawings

• A plat typically shows elevations.
• Differential leveling is the process of using a level and a telescope to determine differences in elevation.
• The bearing of a line is its angle from magnetic south.
• Hatchures are short, parallel, or slightly divergent lines drawn in the direction of a slope.
• Before highway construction begins, it is usually necessary to plan the horizontal and vertical location and alignments.
• Monuments marking surveying points are typically not intended to be permanent.
• A plat is a map of a small area that is plotted from a land survey.
• Hydrographic maps convey information concerning bodies of water.

Discussion & Comments