Drawing Skills: Sketch Maps and Cross-Sections

Sketch Maps

What is a Sketch Map?

• A simplified, hand-drawn version of a detailed map.
• Highlights key features such as physical landmarks, settlements, or transport routes.

Steps for Drawing a Sketch Map

1. Frame the Area:

• Draw a rectangle to represent the map's boundary.
• Use the grid lines to guide proportions.

2. Simplify the Features:

• Include only the essential features relevant to the task (e.g., rivers, towns, roads).
• Use symbols or labels for clarity.

3. Add a Key:

• Provide a legend to explain symbols (e.g., triangles for mountains, dashed lines for trails).

4. Add Scale and Orientation:

• Include a scale bar and a north arrow.

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Cross-Sections

What is a Cross-Section?

A side view that shows the elevation and shape of the land along a straight line, usually between two points on an OS map.

Steps for Drawing a Cross-Section

1. Select the Line:

• Identify the start (A) and end (B) points on the map.

2. Mark Contour Lines:

• Draw a horizontal baseline on graph paper and mark the distances along it corresponding to the map's scale.
• Plot the elevation at each contour line by marking the height above sea level.

3. Join the Points:

• Connect the plotted points with a smooth line to show the land's profile.

4. Label the Features:

• Mark key features such as peaks, valleys, or rivers.

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Applications of Sketch Maps and Cross-Sections

Representing Landforms

• Use cross-sections to illustrate valleys, ridges, or mountains.
• Use sketch maps to identify features like rivers and settlements.

Analysing Spatial Relationships

• Visualise how physical features influence human activity, such as towns near rivers or roads crossing valleys.

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Tips for Success

• Use pencils and rulers for neatness and accuracy.
• Always label key features clearly.
• Practice simplifying detailed maps into sketch maps and plotting accurate cross-sections.

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