roadtrip to georgia (part one)
Aug. 24th, 2006 11:57 pmForthwith a long series of posts detailing what
queenpam and
I did while driving to Atlanta, where she is starting a graduate
program in HCI at
Georgia Tech. This covers the first two days; more as I write 'em.
I have a Flickr photoset of the journey and so does Pam. Hers is done, mine will have days added as I write the corresponding blog entries.
It took quite a bit longer than we would have liked to load up the
car, and we still had a few loose ends to tie up this morning; so
queenpam and I only got on the road at two-thirty PM.
The plan was to take I-8 to Phoenix and then I-17 north to
Flagstaff, and stop there for the night, but we were too tired to
drive all the way there so we found a motel in a little town off
I-17 called Black Canyon City, and if I had actually written this
the day it happened, it would be a very short entry indeed.
Mostly, the interesting bits of this leg have had to do with things visible from I-8 between San Diego and Yuma, Arizona. The most eye-catching one of these has to have been the giant windmills. I didn't get a photo, but here's one taken by Jennifer M. Nicoloff. These things are so huge that the turbine housings (on top of the poles) have windows in them. This news story from when they were installed says there are 25 of them, they stand 20 stories tall (to the top of the pole, I think; the blades go another hundred feet or so up from that) and they generate 50 megawatts collectively. These are not the largest windmills ever built! The largest one stood in Wyoming, had a pole 262 feet tall, generated four megawatts all by itself, and was destroyed by a storm in 1996.
Also, this highway is just a little north of the Mexican border.
There's one stretch where there's this mysterious red and white
triangular-cross-section fence
— I use quotation marks
because you could just step over the thing, it's only about two feet
tall — running along the south side of the highway. We
wondered whether this was the border marker, but we're pretty sure
the border is a bit farther south than that. I'm not finding
anything about it on Google. Anyone know?
It's not all about the works of man, though; the road runs through some spectacular bits of mountain and desert. Did you know there were sand dunes in California? I sure didn't. Wikipedia has some nice photos: Algodones Dunes.
We stopped for dinner in Yuma, at a very nice little Mexican restaurant, and were most confused by the time zones. See, Arizona is on Mountain time, so it should have been an hour ahead of California, but it...wasn't. We didn't find out why until the next day, but I may as well go ahead and explain now: Arizona doesn't do daylight savings time (mainly for historical reasons). Therefore, when California is on DST, Arizona and California are at the same GMT offset.
I'm sure the terrain between Yuma and Phoenix, or Phoenix and Black Canyon City, is also spectacular, but as I was very tired by this point and anyway it was getting dark, I don't recall any of it. We didn't do the Sonoran Desert or Saguaro National Monument per original plan, as it was too late and they would've been too much of a diversion south.
We didn't make much forward progress — by which I
mean toward Georgia
— today. Instead, we diverted north to the
Grand Canyon, which neither of us had ever seen before. To get
there, you go to Flagstaff and then you drive another 150 miles
north through pine forests. I, iggerant coastal type that I am, had
no idea there were pine forests in Arizona; I thought it was
entirely the arid desert plateau that you see farther south. In
places, there are stands of birch trees, also unexpected; in fact, I
seriously wonder if they are imported. [EDIT: According to
this
nifty USGS site's species distribution maps, almost all North
American birch species are found only much farther north, much
farther east, or both; however, Betula occidentalis appears
in small patches of northern Arizona — farther north than we
went, I think. I'm now wondering if what we saw was something else
entirely.]
Furthermore, one thinks of saguaro as something found only in the
southwestern desert, perhaps only in the national monument named
after them, but in fact they're all over the hills from Phoenix to
just south of Flagstaff, intermingled with other chaparral-type
vegetation.
Then you get to the canyon and you stand there for a time going
SOOO BIG.
Ten miles across (on average), nearly three
hundred miles long, four thousand feet from top to bottom... It's
almost too big to look real;
queenpam described it
as looking like a movie backdrop
. After a while looking at
it, the SOOO BIG
reaction turned into a feeling of being
dwarfed not by space but by what the geologists call deep
time.
The Colorado River took only
a few hundred million
years to carve the Canyon; but it cut all the way to and through the
Great Unconformity, which means the bottom of the canyon is older
even than the Mesozoic shallow sea that laid down most of the
sediment that is now the Colorado Plateau. The oldest rocks so
exposed (the Vishnu Schist formation) date to the Precambrian,
1.8 billion years ago, the beginnings of multicellular
life.
The other thing I realized after I stopped just going SOOO
BIG
is that the Grand Canyon is a comparatively small
planetary feature. Yeah, it's big enough that you can see it from
low orbit. But compared to the Rocky Mountains? The Colorado
Plateau, even? Or, more personally relevant, to the total distance
we're planning to cover this a week, sea (almost) to shining sea?
Tiny.
It was far too hot, the air far too thin, and we had far too little
time, to consider any of the hikes or mule trails down into the
canyon. Instead, we took one of the buses that goes along the south
edge and stops at a lot of scenic overlooks. From one of these, you
can see the hoist tower of what used to be the country's richest
uranium mine, operational from 1953 to 1972. And before that, it
was a (meager) copper mine, going back to 1906. They used to climb
two thousand feet down the side of the canyon on wooden ladders to
get at the copper. This is the sort of anecdote that ought to have
a moral, but I can't think of one better than humans will do
incredibly crazy things to make a buck.
We left the park just around sunset, and I have a very few photos of the last light reflecting off the cliff walls. They don't really capture the glowing redness of it; you will just have to go and see for yourself. As we drove back down to Flagstaff and then east until we got tired, we were treated to another natural light show: three or four thunderstorms on the horizon, competing for most spectacular lightning strike (to personify matters far too much).
Also, as we were leaving the park, there was an elk. I have nothing to say about the elk except go look at the photos.