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Mammoth Hot Springs to Norris Jct

Yellowstone’s Grand Loop Road headed from Mammoth Hot Springs to Norris Jct.

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Near Liberty Cap
Silver Gate
Golden Gate
Swan Lake
Obsidian Cliff
Roaring Mountain
Approaching Norris Jct

willowmapHere at Mammoth Hot Springs, water doesn’t erupt like in the geyser basins but flows, gently from cracks. Hot water dissolves the underlying limestone and
deposits it on the surface forming these huge terraces. As we leave Mammoth Hot Spring heading south, the road passes thru Golden Gate. The road passes byObsidian Cliff, a “mountain of glass”. This rock formation is the same as rhyolite, but in this case, the rhyolite cooled so quickly that it did not crystalize. Instead, black glass was formed.

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