The Volcano Adventure Guide: Excellent information and background for anyone wishing to visit active volcanoes safely and enjoyably. The book presents guidelines to visiting 42 different volcanoes around the world.
The NW crater of Gorely, site of the most recent episode of unrest at the volcano during 2013-14 when a vent next to the small acid lake was emitting a hot jet of incandescent gas (at 900 deg temperatures). Now, it is calm again, but for how long? (Photo: Tom Pfeiffer)
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