topographic maps 2 Flashcards
what is a valley?
Low-lying land bordered by higher ground.
what is a hill?
Rounded elevation of land.
where is Montreal situated from a landscape feature point of view?
Montreal is in the Saint Lawrence Lowlands physiographic region of Canada.
These lowlands are bordered by higher elevations – the Canadian Shield and the Appalachian Region.
If we focus in, Adamo lives in the Chateauguay River valley – with the Appalachian Mountains immediately to the South.
what is a ridge?
Linear or elongate elevation or crest of land.
what is a spur?
Linear or elongate elevation or crest of land.
Short RIDGE or branch coming off a main RIDGE.
what is a saddle?
Low point in a ridge or line of hills (literally think horse saddle).
what is a gully?
A GULLY is a ravine, trench or deep channel formed on land by the action of water.
Trench formed on land by the action of water.
what is closed depression?
Low point/area from which water cannot
drain, lower than surrounding area, look for CONTOUR LINES with HACHURE MARKS.
what is a steep slope?
Closely spaced CONTOUR LINES
what is a gentle slope?
WIDELY-SPACED CONTOUR LINES
what indicates whether you have a steep or a gentle slope?
Distance between CONTOUR LINES
what is a vertical cliff?
MERGED CONTOUR LINES
give an example of a vertical cliff.
Mount Thor!!! Nunavut, Canada
The Earth’s greatest vertical drop!
what an overhanging cliff?
CROSSING CONTOUR LINES; look for dashed contour line that crosses a solid one – dashed line indicates what is under the overhanging cliff.
