Baird Glacier Exploration
Rediscovering New Lands in Southeast Alaska
Rebecca at the Baird glacier lake |
The retreating
glaciers of Alaska are leaving behind a moonscape land of boulders, silt, and
minerals that have been scraped off the sides of the valleys or scoured from
the valley floor. This jumble of dirt, rocks, and silt is left behind once the
glacier starts its retreat and is called the terminal moraine. The constant
melting of the glacier can build up a lake between itself and the moraine which
is what you see in famous inland glaciers like Mendenhall outside of Juneau.
The terminal moraine
provides a wonderful science experiment in plant succession. Recently uncovered
land lies bare until the crypto-biotic soil provides enough nutrients for the
pioneering nitrogen fixers to gain hold. Shrubby alder trees come in next and
pave the way for bigger trees like spruce, hemlock, and cedar to follow. The
whole process reminds me of Hawaii’s lava fields, new land which follows a
definite progression of vegetation.
What's left of our skiff prop |
This week we
explored one of these terminal moraine landscapes left behind by Baird glacier.
Located in Thomas Bay, Alaska, Baird has been retreating very quickly. A few
years ago folks who landed on the moraine here were able to walk right up to
the glacier and actually climb on top of it. Nowadays the retreat has left an
impassable lake separating the hikers from the glacier itself. Even landing on
the moraine with a small boat can be difficult because to get there the driver
must navigate a rushing glacial river cascading through the moraine and into
the bay. A few rapids and strong current make boat handling tricky, but the
real kicker is the fact that rocky depth can be hidden in the zero visibility
that the glacial melt provides. Broken propellers are the norm here at Baird
glacier which is always a worry in the forefront of skiff drivers mind.
Despite these
challenges, or maybe because of them, Baird glacier can be a very rewarding,
wilderness, and otherworldly place to experience. It is also wild to see a
place that can change so dramatically season to season, or even week to week.
At the end of last year Baird experienced a huge amount of rainfall which
triggered a mass breakthrough of the moraine pushing huge icebergs out 25 miles
away to the town of Petersburg. Residents there say that this kind of thing
happens every few years, drastically changing the face of Baird. So it was with
an explorer’s eye that we sailed up through Thomas Bay this week to see what we
would find.
Rock hopping to the glacier |
Arriving around 6am,
we put a skiff into the water and all of our drivers and guides clamored
aboard for an early morning recon. We tried several different entrances to
river outputs, as well as a cascading section which turned out to be just as
shallow as it looked. A couple of us took off across land trying to avoid the
BSM, or boot sucking mud. The hikers and drivers reconvened to push the boat
farther in, take a few more chunks out of the propeller, and finally make it to
a landing spot that we recognized from last year. We learned that there had
been some changes to the moraine/river landscape but it was still recognizable
from the end of last year. We also learned not to try and drive the skiffs
upriver on a 1ft low tide.
Ice everywhere |
As the tide came in
however our options became even easier than years prior. We dropped hiking
groups onto the moraine and we took skiff tours all the way up the river into
the glacial lake. The hiking option is a boulder hopping, muddy, test of skill
but puts you out on the shoreline of a lake filled with grounded ice bergs with
Baird glacier providing the backdrop. The glacier is about a ¼ mile back from
this shore. The skiff tours can make it to the lake but have limited access
being blocked out by massive chunks of grounded ice. So as of now it’s not
possible to get back to the glacier unless we hike in a stand up paddle board
or kayak….which is a pretty intriguing option now that I think about it.
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