Invitational participants will have to know the following 30 topographic map features and symbols for the topographic map contest.  You will identify 10 features or symbols during the contest from the following list:

ridge

The yellow line represents the top of the ridge.

valley

In this example an intermittent stream runs through the base of the valley.  The two pictures are identical.  The picture on the right has the valley boundary shaded in yellow for ease of identification.