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Yelia
"Mount Yelia, first recognized as a volcano in 1963, contains a group of andesitic lava domes in the summit area and NW flank. Marble Peak is an older volcanic center immediately to the south. The largest dome in the summit crater is perforated by at least 11 craters. Two large steep-sided, flat-topped lava domes occupy the NNE flank, and two smaller domes are located to the west. The last significant eruption occurred about 18,000 years ago, and no direct evidence for Holocene eruptions has been observed. Weak solfataric activity is present and there was an unverified report from local inhabitants of an eruption during the early 1940's. Weak fumarolic activity continues in the summit crater."  -Smithsonian Volcano Archive
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