| 1. | The complex rises from an altitude of and has two summit craters.
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| 2. | The well-preserved summit crater and youthful-looking lava flows have been assigned Holocene ages.
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| 3. | The volcano is densely foreseted in all but the summit crater.
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| 4. | The volcano contains three striking summit crater lakes of varying colors.
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| 5. | The active summit crater is surrounded by hot springs and fumaroles.
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| 6. | Three nested summit craters lie at the top of Mt.
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| 7. | The fumaroles in the summit crater produce extensive sulfur deposits.
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| 8. | Active fumaroles are present just north of Concepci�n's summit crater.
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| 9. | A wide summit crater caps the peak, and it contains a heart-shaped crater lake.
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| 10. | Several holocene eruptions have originated from the summit crater and have produced felsic material.
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मोबाइल