Topographic Map Flashcards
What do topographic maps show?
the physical and natural features of the earth
what do contour lines connect?
all points at the same elevation
what do contour lines never do?
cross
if contour lines are closer together, what does this mean for the slope?
it’s steeper
What do “V” contour lines indicate and where do they point?
indicate a valley; point upstream
what can contour lines also indicate?
hills or mountains
What do dashed (hachure marks) on a topographic map show?
hole
depression contours
hashed marks that show a point that is lower than the contour (a hole)
Contour interval
the difference in elevation between each contour line
Contour index
every 5th contour line is in bold and labeled with the elevation number
Relief
difference between highest and lowest points on the map