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On a USGS topographic map, what does a green area usually show?

Woodland, such as forest or scrub.

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  1. Grassy fields with no trees
  2. Swampy water
  3. Woodland or scrub ✔

Why: USGS uses green for vegetation like woodland, orchards and vineyards. Water is blue and contour lines are brown, so a green patch means trees or brush.

Huh, didn't know that: Black on a USGS topo shows roads, trails, railroads, boundaries and other human-made features.

The dad joke
Why did the map blush? It saw the forest turn green.
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References

Answer: Woodland or scrub. USGS uses green for vegetation like woodland, orchards and vineyards. Water is blue and contour lines are brown, so a green patch means trees or brush.

  1. USGS: Topographic Map Symbols pubs.usgs.gov/gip/TopographicMapSymbols/topomapsymbols.pdf
    area features, such as vegetation (green), water (blue)
    Checked 2026-10-08.

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