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What color usually marks streams and lakes on a sectional chart?

Hydrographic features such as streams and lakes appear in blue.

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  1. Blue ✔
  2. Yellow
  3. Black

Why: Hydrographic features are bodies of water. Showing them in blue helps pilots recognize useful landmarks on the chart.

Huh, didn't know that: Large water features can be easy checkpoints during visual navigation.

The dad joke
Why was the lake easy to find? It made a splash on the chart!
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References

Answer: Blue. Hydrographic features are bodies of water. Showing them in blue helps pilots recognize useful landmarks on the chart.

  1. Civil Air Patrol, Journey of Flight Teacher's Guide www.gocivilairpatrol.com/media/cms/2nd_edition_Teachers_Guide_5D3166D76F9B1.pdf
    Hydrographic Features refer to water. Streams and lakes are depicted in blue.
    Checked 2026-10-10.

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