Outdoors

Why does a mountain's shadow appear triangular?

MOUNTAINEERING — Even experienced mountaineers have been stopped in their tracks occasionally by the rare sight of a triangular shadow darkening the landscape in the distance away from a major peak.

The triangle shadow phenomena is fairly commonly seen from the tops of large mountains and volcanoes, but not well understood.

Check out this astronomy website for a good explaination.  Navigate to the Astronomy picture of the day for July 5, 2011.




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Rich Landers

Rich Landers’ Outdoors blog


Rich Landers writes and photographs stories for a wide range of outdoors coverage, including a Sunday feature section and a Thursday column. He also writes the Outdoors Blog.


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