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Topographic Map: Key Concepts. Contour maps show the following: The elevation of the land above sea level . “A bird’s eye view! . Topographic Map: Key Concepts. The connect points that are at the same elevation They never cross or touch They are imaginary lines
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Contour maps show the following: The elevation of the land above sea level. “A bird’s eye view! Topographic Map: Key Concepts
The connect points that are at the same elevation They never cross or touch They are imaginary lines They always connect and form a circle Rules of Contour Lines
BENCHMARK: A benchmark is a place on a map where exact elevation is known. It is marked BM on a map. Parts of a Topographic Map
MAP SCALE A map scale shows the distance on a map in relation to Earth. Parts of a Topographic Map
MAP LEGEND A map legend explains the symbols used on a map. Parts of a Topographic Map
CONTOUR INTERVAL A contour interval is the difference in elevation between two contour lines. Other Key Concepts
When lines are close together, they represent a steep slope. When lines are spread apart, they represent a gradual slope. Other Key Concepts
Dark Contour Lines: What do they mean?
Hachure Lines: What do they mean?
Blue Lines/Shapes: What do they mean?
Brown Lines: What do they mean?
Black Lines/Shapes: What do they mean?
Green: What do they mean?
Red What do they mean?
Contour lines that cross water form a “V” that points UPSTREAM! Did you know?