Hawaii Volcanoes National Park, Hawaii - August 28, 2006
Solfataras (vents emitting sulfur) along Crater Rim Drive, just beyond the Halema'uma'u Overlook.
The hard-to-read sign about solfataras. I believe it says: "Following
an eruption, a few vents (fumaroles) remain allowing volcanic gases to
escape. Fumaroles emitting sulfur are called solfataras. Clusters of
sulfur crystals give rise to the yellow coloring. These vents are
the result of the July 1974 eruption."
[Closer] [3488x2616] [1744x1308]
The most impressive of the solfataras.