Draw a line using a straight edge or ruler from point A to B.

With a piece of folded paper, hold a folded edge on the line that you drew.

Make a tick mark at each contour line that intersects with the folded paper, and write down the elevation under the tick mark.

Using the graph paper, draw an X and Y axis to make the graph. Label the Y-axis evenly with the height needed to go from zero to the highest point that you recorded with the tick marks.

Lay the paper with the tick marks along the X-axis of the Topographic Profile. Your first tick mark should be aligned with the point at zero on the x-axis in the bottom left corner of your graph.

For each tick mark, place a point on the graph that corresponds to the elevation indicated by that tick mark. The tick mark determines your X-value, and the elevation determines the Y-value. Make sure to keep the same spacing on the x-axis as on your paper with the tick marks on them.

Connect the dots with a smooth, curved line to form your profile. This should give you a cross-section view of the mountain.

Make sure your profile has a title, scale on the Y-axis from lowest to highest elevation, and labels on the X and Y-axes. Point 'A' should be marked on the X-axis at zero, and point 'B' should be marked on the X-axis on the right side of the X-axis.