On a clear day, about how far away can a signal mirror flash be seen?

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  1. Up to about 100 miles
  2. About 100 feet
  3. About 1 mile

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References

  1. Scout Life, Lost in the Woods! Now What? scoutlife.org/outdoors/1200/trail-tips-lost-in-the-woods Checked 2026-10-09.

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