| 1. | "' Hollister Peak "'is a volcanic plug located near Morro Bay, California.
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| 2. | Dumbarton Rock, a volcanic plug, is said to resemble an elephant.
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| 3. | They comprise dikes, welded tuffs, pitchstones, volcanic plugs, laccoliths and flows.
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| 4. | The wilderness has volcanic plugs to the north in the Mount Nutt Wilderness.
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| 5. | The "'Pitons "'are two mountainous volcanic plugs, volcanic spires, located in Saint Lucia.
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| 6. | To the west is the volcanic plug Dumgoyne, Trossachs National Park.
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| 7. | The largest volcanic plug in Northern Ireland is the oval-shaped Slemish.
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| 8. | In addition, snakes live in the volcanic plug, making the traverse even more difficult.
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| 9. | Geologically Ailsa Craig is the remains of a volcanic plug from an extinct volcano.
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| 10. | The now uninhabited island is formed from the volcanic plug of an extinct volcano.
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