| Inside the Oregon Caves National Monument. | |
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| The formations look big in these pictures, but most of them are about 4 feet tall. |  |
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Huge cavern, with part of my tour group for scale. |  |
| Fast-growing stalagmite, near the center of the picture. |  |
The same huge cavern, this time with night exposure. |  |
About 30 vertical feet of jellyfish formations. |  |
| View from the ridge above the caves. |  |