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In Figure 7-7, with Garibaldi Creek located east of Deadman's Lake, what is the determined upstream direction of the creek based on the contour lines?

A) Northeast (NE)
B) Southeast (SE)
C) Southwest (SW)
D) Northwest (NW)
Please select the correct option.

1 Answer

3 votes

Final answer:

The upstream direction of Garibaldi Creek, or any river or stream, can be determined by examining the contour lines on a topographical map, where water flows from higher to lower elevations. Without the map, the answer cannot be definitively established.

Step-by-step explanation:

In topographical maps, contour lines are used to represent elevations and the shape of the terrain. When the contour lines are close together, it indicates a steep gradient, while widely spaced contour lines indicate a gentle slope. To determine the upstream direction of a creek or river, you would look for the contour lines to converge, meaning the elevation is getting higher. The upstream direction is towards these higher elevations since water flows from high to low areas.

As Garibaldi Creek is located east of Deadman's Lake, and we cannot see the actual map, we must rely on general knowledge that water flows from higher elevation to lower elevation. Without the specific contour lines, we can't definitively answer the direction of the creek's upstream. However, if we assumed that the higher elevations were to the southeast (SE), northeast (NE), southwest (SW), or northwest (NW), we would look for contour lines that are closer together in one of these directions, indicating a rise in elevation.

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