Your journey up the 3,000-mile-long Huang He begins at its mouth, which you approach from the (1)
Sea. Despite its length, the entire river is within the
country of (2).
. After voyaging about (3)
miles on the
Huang He you reach a point where the river turns sharply north. You journey on for about 300 miles and then sail past the largest man-made structure in the world, the (4).
. The river winds west again for a ways and then southwest.
terrain.
Eventually you reach the source of the Huang He, located in (5).