Contours, relief, spot heights and drawing or reading cross-sections

What this note covers

1. Contour lines and contour interval on the Bellara sheet
2. Spot heights versus contour-derived elevation
3. Reading slope steepness from contour spacing
4. Constructing and reading a cross-section
5. Calculating gradient between two points
6. Worked example: describing relief using contour evidence
7. How this is examined and what separates a top response

7 sections · 11 key terms & formulas · 6 common mistakes