Dateline: October 30 - 31
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I had to add a rack to clear the front seat for Lucy and carry her two bags |
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Roadside view |
We arrived just before dusk to a bleak, rocky landscape.
This was the Craters of the Moon?
Early
viewers thought it must be a moonscape of black rock, some sharp, and other
parts smooth. Huge blocks of black rock surrounded out campsite. In the fading
sunset, we drove a little ways through the park, and saw huge monoliths and
fields of seemingly unending black rock.
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Sunrise silhouetting large volcanic rocks |
But in the morning, we saw the place differently. We could
see mountains off in the distance, some bare, and some with trees, sage, or
other desert plants growing on them. There were even some plants growing on the
volcanic ash or small pebbles. And there were colors mixed in with the mostly
black rock. Orange was the most obvious, but there were blue colors and
sometimes even white.
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A view from the trail to the nested crators |
We started off our Halloween day at Crater of the Moon
National Monument with a short trip to the Visitor Center where we learned a
little about the volcanic activity that has occurred over the last 15,000 years. This area contains some of the
best examples of basaltic volcanism in the world. It is the last place, before
Yellowstone, to move over an earth’s hot spot, so it’s volcanic activity is
fairly recent. There is about a half mile of basaltic lava lying over more than
one and a half miles of rhyolitic lava. There are two kinds of lava flows: the
pahoehoe flow that is formed when the lava hardens quickly to a smooth surface,
which can be ropy, hummocky, or flat. Aa lava flows are more rugged and are
almost impossible to walk across. Bombs
are lava that solidified in flight and form various shapes. Tree molds are
formed when molten lava surrounds and burns trees, leaving only the impression
of the charred tree. Eventually we got
to see all the forms of lava except the tree molds. We could also see mountains made of lava ash as
well as splatter cones, and groups of nestled craters.
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Pahoehoe lava showing colors |
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A breadcrust bomb |
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Spatter Cones |
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One of the nested craters |
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One of the rocks I collected - only in pictures, of course |
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Pahoehoe "logs" |
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Pahowhoe ropes |
.The most
fascinating part was finding the colors within the rocks. We drove the entire
auto route, stopping to hike through small areas. By day’s end, we had seen
most of the park, missing only the trail to a spot where we could have seen the
molds formed over trees.
Our favorite spot was the trip to and through a “cave”, a
lava tube with openings. We walked though a huge lava field – fortunately on a
paved trail – then down into the tube named the Indian Tunnel. Several spots had holes in the ceiling so we
had some amount of light to traverse the path and see some of the details. One
of the most interesting details were lava stalactites on the ceiling. At the far end, we had to scramble up over
large rocks to climb to a small opening There are three (or two) other caves open to the public which
are wilder and require a flashlight to find one’s way through.
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Lucy walking through lava field to cave |
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View inside cave |
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Lava stalactites |
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Cave wall detail |
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Lucy climbing out of cave |
This place helps you
to understand geologic time and has a wonderful, awful beauty. One part of the
Oregon Trail ran through this area. It was a southern loop used to avoid the Shoshone
Indians who were attacking the wagon trains.
One man wrote that he had to drive his wagon over a rock just barely
wider than the wagon. He was within a foot of turning over. There are many other stories of the hardships the settlers suffered on the lava beds. But the Shoshone Indians
traveled through the area in their migrations and left trails on the rocks.
They also marked water sources though out the area. And they have tribal
memories of the last eruption to occur here, some 2000 years ago.
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The closest thing we found to a jack-o-lantern's grin |
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Our only trick-or-treater - he was happy with a piece of bread |
I’ve been editing these pictures over a few days. Lucy and I
spent last night and tonight in motels so I could get on-line. We’ll camp
tomorrow night and then get to Houston/Galveston the following night. Then I
have around 700 more pictures to edit and lots more stories to tell of our
visits to Bryce and Zion National Parks and visits to National Monuments.
If you want to see
more pictures from the Crater of the Moon, check out my Picassa album.
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