| 11. | That's why Siebe and his associates grew nervous in 1993, when the volcano's steam vents started hissing ominously.
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| 12. | Gently make steam vents in the top of the pastry and bake at 350 degrees for 20 minutes.
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| 13. | Climbers still are not allowed inside the crater because of the dangers of slides, rockfall and steam vents.
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| 14. | While dessert cooks, guests return to the living room to inspect microwave casseroles with steam vents and other items.
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| 15. | Transfer empanadas to baking pan and cut a few small slits in top of each empanada to create steam vents.
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| 16. | Place the circle of pastry over the top and cut a few 3-inch slits here and there for steam vents.
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| 17. | Lassen has geologic features similar to Yellowstone's _ steam vents and boiling mud pots _ though on a smaller scale.
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| 18. | A teen-age boy in our group reveled in ignoring the numerous warning signs to stay well back of the steam vents.
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| 19. | The Long Valley Caldera hosts an active hydrothermal system that includes hot springs, fumaroles ( steam vents ), and mineral deposits.
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| 20. | However, by 1992, although there were 25 solfataras, a boiling hot spring and several steam vents, no eruption had taken place.
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