1.the black and white topographic map shown is oriented so that the top of the map points north. in which direction is the prominent drainage valley oriented? (remember that a drainage valley is the direction water will flow as it drains a landscape. the "rule of vs" states that contour lines show a "v" shape, with the v pointed upslope. the water drains through the point in the v.)
a. north-south
b. east-west
2. which direction does rain runoff or snowmelt flow through the main drainage valley?
a. north
b. south
c. east
d. west