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Mid-June 2002
was a good occasion to do an excursion that few visitors to Etna will
ever do, if they do not happen to stay a bit longer or know
a mountain guide who offers this type of excursion: the descent into the
Valle del Bove on the so-called "Sabbione della Montagnola"
(loosely translated as "the Big Sand"). The descent starts at
the Montagnola and goes down 700 m of vertical relief on a scree made
of loose sand - just sand at the angle of repose. The enormous quantities
of pyroclastics ejected in the 2001 and 2002-2003 eruptions have made
the whole thing still more pleasant, since now there is not only sand
on the slope, but much of the lavas which make up the floor of the Valle
del Bove are also covered with tephra, which makes walking much easier.
While the descent is simply an enormous quantity of fun, the Valle del
Bove itself is one of the most suggestive areas on the volcano, and one
of the least known. The following photographs were taken in mid-June 2002
and do not need much commenting except in a few cases. I thank Giuseppe
Scarpinati for his company and for sharing his Etna-related experience;
his presence in most of these photographs render, in my opinion, a better
idea of the steepness of the descent and of the sheer dimensions of the
surrounding landscape
Big,
big fun: the descent into the Valle del Bove, June 2002
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700
m of vertical relief to go, this is no good idea if you suffer
vertigo, but extreme fun if you don't. The look from the top of
the slope known as "Sabbione della Montagnola" down
into the Valle del Bove is breathtaking. However, to do this adventure,
one must be very familiar with the place, and choose a day of
stable weather. It cannot be done during the winter because the
slope is covered with ice, and people have died when venturing
on this slope during the winter |
Two months
after the Valle del Bove excursion I was back on the hiking tracks of
Etna, following a number of hikes on the Aeolian Islands (I worked as
a guide for an adventure travel agency). This time it was a three-day
hike all around Etna's southwestern, western, nortwestern, northern
and northeastern flanks, following the "Forestale" (forest
guard) dirt road, with overnight stays in mountain huts that do not
have services. It is not exactly a walk in the park, but it brings you
to places of stunning beauty, and if weather conditions are good, Etna
can be seen in all its grandeur.
"Grand
Tour" of Etna, August 2002
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Etna's
massive western to northwestern flank is seen in these two photographs
(for aesthetical reasons they have not been placed in the inverse
order) taken on 17 August 2001 from the summit of Monte Nunziata,
a large pyroclastic cone formed in 1832. There are not many other
areas where the flanks of Etna show such a variety of colors. Most
of these are due to different ages and thus grades of weathering
and colonization by vegetation of lava flows. The dark lava flows
visible in the upper right part of the slope in the left photograph
were formed by the voluminous overflows from the Bocca Nuova, one
of the summit craters, in October-November 1999. Below them, still
in the left-hand photograph, there is a conspicuous row of pyroclastic
cones aligned along an eruptive fissure that was active in 1843;
the peculiar meandering lava flows in right foreground were emitted
from those vents during that eruption. In the lower left center
of the image is another cluster of cones, half-covered with vegetation
(the fresh light green bushes), which constitutes the upper portion
of the 1832 eruptive fissure
The right photograph shows an area that actually lies to the left
of that shown in the left photograph. Here there are less recent
lavas, and more vegetation; furthermore there is one very narrow
eruptive fissure that seems to have erupted only very briefly, and
densely vegetated prehistoric pyroclastic cones are seen at extreme
left |
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I
did not get to see much of the summit activity that occurred between
June and September 2002, mostly at the Northeast Crater, because
I was rarely at Etna during that period. On 18 August, though, I
caught a glimpse of the typical Strombolian activity persisting
at that crater. At night, there were small incandescent bursts,
during daylight one would see small puffs of grayish ash (left photograph).
Ash-free plumes were emitted the next day (19 August), seen in the
right photograph with the phantastic landscape of the Northeast
Rift in the foreground |
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One
of the most conspicuous of Etna's numerous flank cones, Monte Nero
(Black Mountain) formed during a large, and strongly explosive,
eruption in 1646-1647 in the lower portion of the Northeast Rift.
This area is a volcanic wonderland, with countless cones and craters
of different size, color, form, and age. Darker, more recent lavas
that can be seen at the near base of the 120 m-tall cone were erupted
in 1911 and 1923. Still more recently, after this photograph was
taken, the Northeast Rift erupted again, and the most easy access
routes to this area were cut by lava flows. Monte Nero and its surroundings
are presently one of the most remote places on Etna. Photograph
was taken 19 August 2002 |
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