Question

Shown is a topographic map of Blue River Pine Provincial Park in British Columbia. Draw curves of steepest descent from point \(A\) (descending to Mud Lake) and from point\(B\).

Short answer

The graph is given below.

Step-by-step solution

The curves of steepest descent from point \(A\) and from point \(B\).

Start with point \(A\) and sketch the curves which is perpendicular to the contour curves and move towards Mud Lake.

Start with point \(B\) and sketch the curves which is perpendicular to the contour curves and move towards Mud Lake.

The required graph is shown below in Figure 1.

From the figure it can be observed that the curves are making right angle with the contour lines.