Dangerous Ground Sign at Yellowstone National Park warns visitors in several languages that it is dangerous to walk of the boardwalk because they might fall into hot water.
NIKON CORPORATION NIKON D750, f/8 @ 40 mm, 1/125, ISO 160, No Flash
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Keywords:Boardwalk, Post, Sign, Yellow Stone, Yellowstone National Park, caution, danger, dangerous, geology, geothermal, geyser, thermal, warning
