Understanding Topographic Maps and Slope

Sarah Carpenter, co-owner of the American Avalanche Institute, emphasizes the importance of map reading for winter travel and avalanche hazard mitigation. She explains how to interpret topographic maps, focusing on contour lines and their spacing to determine slope steepness. Sarah introduces the use of a slope index on a crystal card to assess travel conditions, highlighting the practical application of these skills in mountain environments.

Who is Sarah Carpenter and what is her role related to avalanche safety?

• A ski instructor in the Alps

• A forest ranger in the Tetons

• A co-owner of the American Avalanche Institute

• A mountain climber in the Rockies

What does the green color on a topographic map indicate?

• A desert

• A forested area

• A water body

• A rocky terrain

What do contour lines on a topographic map represent?

• The weather conditions

• The type of vegetation

• The elevation change between two points

• The distance between two points

How can you determine the steepness of a slope using contour lines?

• By the direction of the lines

• By the thickness of the lines

• By the distance between the lines

• By the color of the lines

What is the contour interval mentioned in the video?

• 50 feet

• 40 feet

• 30 feet

• 20 feet

What tool is used to measure slope steepness on a topographic map?

• A compass

• A ruler

• A crystal card

• A protractor

Why is it important to know the steepness of a slope when planning travel?

• To find the shortest route

• To ensure safety and avoid avalanche-prone areas

• To avoid getting lost

• To identify water sources

What does the slope index on the back of a crystal card help determine?

• The distance to the next landmark

• The type of vegetation

• The weather conditions

• The steepness of a slope