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Posts Tagged ‘John Muir’

A much anticipated day was our visit to Glacier Bay National Park.

Glacier Bay map

Glacier Bay map

This area, at the northern end of Tongass National Forest on the Alaskan Panhandle is very special. As far back as February 25th, 1925, the uniqueness of this area was noted. It needed to preserved as true wilderness. In a far sighted act, the then US President, Calvin Coolidge, proclaimed it a ‘National Monument under the Antiquities Act’.

In total, the wilderness area of Glacier Bay National Park covers 10,784 km² (4,164 mi²). There’s also a large extension to the park that’s called a preserve, where hunting can be undertaken, but only under special licence. I’ve never been able to fathom the need for people to hunt and shoot wild animals for ‘trophies’ but that’s the way it is in these parts.

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© JT of jtdytravels; P1140458

The entrance to Glacier Bay is close to the entrance of the Inside Passage. The big Cruise Ships come in from the Gulf of Alaska via Icy Strait, away from the rolling sea, as I remember it from my last visit here in 2001, and into much calmer waters. On this visit to Alaska, in 2015, I’d spent the night asleep on board our small ship ‘Sea Lion” in the calm waters of one of the nearby coves. In the morning, we only had to sail across the strait to the National Park  headquarters to pick up our guide, Nicole. Every ship, large or small, must take on board a Park Ranger. Their task is to check that no rules are broken and also to act as the NP guide for the day.

Many of the glaciers in this famous Bay, owe their existence to the largest of all mountains in the area, Mt Fairweather. Storms blow in from the ocean and dump their icy waters as snow on and over the Mt Fairweather area. Over centuries, glaciers form from the compacted snow.

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Tlingit Totem symbol © JT of jtdytravels; P1140456

In the 1800’s, this area became a fishing place for the native Huna Tlingit. Their name for the highest mountain in the area was Tsalxhaan.  When Captain James Cook saw it, on a fine day in 1778, he named it Mt Fairweather… not really an apt description as it’s not often seen for cloud and is not known for fair weather. Regardless of that, Cook’s naming has been kept.

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Glacier Bay in 1750 © JT of jtdytravels; P1140448

The story of Glacier Bay in recorded history is one of fast, spectacular retreat. In Tlingit memory, a huge glacier protruded out into Icy Strait. The first European to mention this area was French explorer La Perouse in 1786. Then, when George Vancouver’s expedition came this way in 1794, they found Icy Strait choked with ice…. hence the name. The area we now know as Glacier Bay was in fact just one tidewater glacier. By 1879, just 85 years later, the famous naturalist John Muir found that the glacier had retreated up the bay by 77km (48mi). And by 1916, the ‘Grand Pacific Glacier’ had retreated 105km (65mi) from the mouth of the bay. This was the fastest recorded iceberg retreat and has been studied by scientists ever since.

The most dramatic example of glacier retreat in the last century was that of the glacier named after John Muir. The calving face of Muir Glacier was 3.2 km (2mi) wide and 81 m (265 ft) high. By the 1990’s, it was no longer calving into the bay. It had retreated back into the ice sheet in the mountains. One wonders what Muir would have made of that!

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Tlingit summer fishing camp © JT of jtdytravels; P1140452

In the late 1800’s, John Muir found the Tlingit people living in their summer camps near the mouth of the bay. They came here to fish and hunt. These people travelled in their dug out canoes throughout these waters, fishing, hunting and visiting other clans for weddings and for ‘potlatch’ ceremonies in which gifts were exchanged to keep peace between the various clans. Maybe we could learn something from this ‘potlatch’ tradition today to help maintain peace instead of resorting to seemingly endless wars! A tradition of giving rather than taking!

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Tlingit canoe © JT of jtdytravels; P1140425

This example of a Tlingit canoe was built, in the traditional way using an adze, by craftsmen in 1987.  It’s made from a single spruce tree and is on show at the Ranger’s headquarters.

After picking up our Park guide Nicole and her understudy, Jenny, we sailed on into the bay in search of wildlife. This was the distinct advantage of being on such a small ship. The large cruise ships sail straight up the bay to see the glaciers and then straight back down again. We had the priviledge of taking our time, of exploring around small islands, of slowing right down when animals were sighted and of getting in close to bays and beaches and cliffs. But we stayed on board. There were no off ship excursions or activities. That was not permitted.

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Stellar Sea Lions hauled out on a rock © DY of jtdytravels; P1110474

Small rocks we passed were often covered in Steller sea lions. They are named after Georg Wilhelm Steller who first described them as a distinct type of sea lion in 1741. They are the largest of the eared seals and like other sea lions, they are thigmotactic; they like to cuddle up close together!

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Steller Sea Lions © DY of jtdytravels; P1110503

Steller sea lions are, for some as yet unexplained reason, declining in numbers in Alaska. They are the object of much debate by Alaskan scientists, fishermen and politicians. The reason for the decline is likely to be a complex web of factors including less available fish due to over fishing. With less fatty fish like herring available, sea lions eat more of the leaner fish like pollock and flounder. This limits the amount of fat in the diet, a necessary requirement for survival in these cold waters. Other reasons put forward for this decline in numbers are: shooting by fishermen who see the sea lions as a threat to their own livelihoods, changes in climate, contaminants in waters and increased predation by orcas. The latter I find hard to believe. We did not see one Orca on the whole expedition.

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Steller Sea Lion defending territory © JT of jtdytravels; P1140041

The big bull Steller sea lions constantly defend their chosen territory. They are polygynous but, unlike the sea lion species we had seen in Galapagos, these Stella sea lions don’t have harems of females. Instead the bulls control a space where females can come and go but no other male is welcome. We watched this big fellow see off several intruders.

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Cormorants © DY of jtdytravels; P1110498

These cormorants seemed to be doing the impossible; standing on a steeply sloping rock face. But they do more than just stand on the slopes; they nest on narrow ledges and shallow depressions on the steepest slopes they can find on the cliffs of rocky islands like this one. The nests are made of anything they can find such as marine algae, grass, moss, sticks and flotsam and debris. They use their excrement to cement these bits and pieces together. All that work is not wasted as the nests are reused year after year. These birds are great divers and feed mostly on bottom feeding fish and invertebrates.

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Puffin © JT of jtdytravels; P1140074

It was wonderful to see quite a lot of puffins in these waters near the small islands. But they are very small and so hard to photograph. And they are endlessly diving for small fish. Their large colourful bills are more colourful in the summer nesting season than in winter when the bill’s outer layers are shed. Their black and white plumage is referred to in their genus name  Fratercula, which is derived from the Latin meaning ‘little brother’. It was thought that their plumage resembles monastic robes. Once again, perhaps some imagination is required!

In general, puffins nest underground but at rocky sites like these islands, they do nest on cliff faces. The female lays just one whitish egg and then both parents take turns in the important tasks of incubating the egg and going out to fish. The chick is hatched in July or early August, and then the parents take turns in caring for and feeding the chick. At about five days old, the chick has to fend for itself on that ledge whilst both parents go out to find food.  As the colder weather comes in, the birds leave to spend the winter in the Ocean and never venturing back to the land until the next breeding season. So we were very lucky to see them at nesting time.

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Braided stream © JT of jtdytravels; P1140105

In several places we saw braided streams coming down through old glacial valleys. Here, the pioneer plants like Alder were in evidence, re-establishing land previously covered in ice.

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Snow and ice covered mountains ahead. © JT of jtdytravels; P1140116

Ice covered mountains came into sight the further north we sailed up the bay.

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Rocky cliffs scoured by glacial action © JT of jtdytravels; P1140147

Only lichens and mosses could grow on these cliff faces.

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Grizzly Bear © JY of jtdytravels; P1140166

The cry of “BEAR! BEAR!” soon had everyone rushing to the side of the ship. Because we were on such a small ship, the captain was able to edge closer to the shore and hold position while we watched the bear graze and wander through the grasses. It took absolutely no notice of us.

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An old glacial valley © DY of jtdytravels; P1110543

We sailed by several of these very picturesque old glacial valleys, testament to the time when this bay was covered in ice… and that just over two hundred years ago… not millennia!

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A beach of glacial murrain © JT of jtdytravels; P1140168

Gravel brought down by the stream from this mountain had formed a beach.

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Wolves © JT of jtdytravels; P1140204

And it was on that beach that we saw wolves (Canis lupus). This caused great excitement. Many of our crew had never seen them and the Captain said it was most unusual to find them in this area. They are usually much more secretive. But on this day, these two chose to wander along the beach and were in view for at least twenty minutes. We just slowly followed them along the beach… from the safety of the ship, of course.

These wolves had very dark pelts, much darker than those found in northern parts of Alaska where, I suppose, they need to be able to ‘melt into’ the colours of a very different landscape. But the pelt colour of Alaskan wolves ranges from black to nearly white, with every shade of grey and brown in between although grey or black wolves like these are the most common.

Wolves can be legally hunted and trapped in Alaska, outside of the area of the National Park. They are classified as both big game animals and as furbearers and are deemed to be not endangered in Alaska. We were told that between 1994 and 2005 more than 14,000 wolves were reported to have been killed or trapped by hunters… and probably as many as that were not reported. We were glad that these two had the protection of a National Park.

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Mountain goats © DY of jtdytravels; P1110565

Mountain goats (Oreamnos americanus), as their name suggests, inhabit rugged habitats. They are the only North American representative of mountain ‘ungulates’ or rock goats. And they need to live in an environment like this where wolves can’t easily get to them. To survive here, their hooves are specially designed for climbing on steep, slippery slopes. Their feet have a hard keratinous sheath with an imbedded soft pad which enables them grip the maximum surface area on even the smallest rock or crevice. It was fascinating to watch these three gamble about on this cliff, grazing, but ever watchful.

They have another survival adaptation that allows them to live in the extreme conditions of South East Alaska; in winter they grow a long, shaggy coat. They would need it!

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Sailing ever closer to those remaining glaciers © DY of jtdytravels; P1110572

We left our search for wild life and sailed on towards the glaciers,

still quite a way to go to the head of the bay.

So time out for lunch.

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The ice shelf visible above an old valley © JT of jtdytravels; P1140314

After lunch the terrain around had changed somewhat.

Now we could see evidence of the ice shelf in the heights above a valley.

Stunning scenery all around us.

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Small ice flows in the water © JT of jtdytravels; P1140322

Finally, the glaciers were heralded by sightings of small ice flows in the water.

And the glaciers that ice came from is the subject of our next post.

Jennie and David

All photographs copyright © JT  and DY  of  jtdytravels

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After our morning exploration of Juneau it was time to meet our fellow “explorers” and hop onto a tour bus to travel 19km (12ml) north along one of Juneau’s two major roads (in blue on the map). Our destination was the base of the Mendenhall Glacier, the only glacier we would be able to get to, in a fairly close up and personal way, on this trip to the Inside Passage area of Alaska.

Map of Juneau

Map of Juneau

Mendenhall Glacier, top centre on the map, on the northern side of Mendenhall Lake, is a glacier in retreat.  Early mention of the glacier came from Joseph Whidbey, master of George Vancouver’s ship HMS Discovery, who visited the area in 1794. He noted that most waterways here were unnavigable because of ice flows from glaciers.

HMS Discovery

HMS Discovery

 

Of course, shipping was so much different then…. no ice breaking hulls and only wind power, so exploring in amongst the islands of the Inside Passage would have been all but impossible for such a sailing ship. Boat parties were sent out to chart some of the coasts of some of the islands. However, that was all that was possible before Vancouver turned south again to return to England.

By 1888, when the famous naturalist John Muir came to explore in the area, the native peoples, the Tlingits, inhabited part of the valley left by the retreating glacier. Muir gave the glacier the name Auke (or Auk) in honour of that group of Tlingits known as the Auk Kwaan. But the name was changed in 1891 to honour an American physicist and meteorologist, Thomas Mendenhall, the Superintendent of the US Coast Guard and Geodetic survey.

The glacier has been monitored since 1942, so it is known that Mendenhall Lake is a modern day lake, created by the large amount of moraine pushed down while the glacier has been retreating rather quickly, (2.82km or 1.75 ml), since 1958.  It is thought that the glacier has retreated a total of 4km (2.5ml) since the 1500s. With warming temperatures it is expected to retreat further.

Top section of Mendenhall Lake  ©  JT  of  jtdutravels P1130478

Top section of Mendenhall Lake © JT of jtdutravels P1130478

Viewed from the “Discovery Centre”, it’s easy to see how the glacier melt has gradually formed the lake with piles of murrain. Much of that moraine is now covered with young trees. The sides of the glacier are still all but devoid of vegetation. The glacier itself vanishes into the distance for 19 kilometres (12ml) to where it joins the vast Juneau Icefield.

Juneau Icefield

Juneau Icefield

There are a couple of ways to enjoy the icefields from the air,

either by small plane or by helicopter.

Our group took the option of viewing the glacier from ground level.

Juneau Icefield from maps in the Park Centre.

Juneau Icefield from maps in the Park Centre.

At the Discovery Centre, a map shows the extent of the Juneau Icefield which covers 3,900 square kilometres (1,500 sq ml) and crosses the border between USA and Canada. Mendenhall (pin pointed by the small banner on the left) is just one of 40 major glaciers spawned by this Icefield. There are also about 100 smaller ones. All are in retreat except for the Taku Glacier, centre right, which filled its valley with so much glacial moraine that it has blocked its own waterway. It can no longer calve and has steadily been growing.

A piece of calved ice ©  Jt  of  jtdytravels; P1130466

A piece of calved ice © Jt of jtdytravels; P1130466

Calving happens when a chunk of ice breaks off the face of a glacier. This chunk of ice now floats in the lake. The men in the row boat give an indication of scale as does the next photo. Most chunks that we saw calving were much smaller than this one and are invisible in the longer distance.

Mendenhall Glacier ©  JT  of jtdytravels; P1130473

Mendenhall Glacier © JT of jtdytravels; P1130473

There were two paths to follow. One through the trees towards the waterfall and one down to the lake’s edge. David chose the former; I chose the latter.

David’s aim was to seek out some of the native plants of the area.

Mine was to take a closer look at the glacier.

Face of Mendenhall Glacier © JT of jtdytravels; P1130459

Mendenhall Glacier © JT of jtdytravels; P1130459

The face of a glacier is a truly magnificent, awe inspiring sight.

It makes one feel quite small.

Close up of face of Glacier ©  JT  of  jtdytravels; P1130477

The face of the Glacier © JT of jtdytravels; P1130477

The leading edge of the glacier is very dirty although the ice itself has a lovely blue tinge. The dirtiness is made up of earth and rocks carved out from the mountain sides by the moving glacier.

Closer look at the face of the glacier ©  JT  of  jtdytravels; P1130468

Closer look at the face of the glacier © JT of jtdytravels; P1130468

An even closer look, thanks to my 30 times camera, shows the great, blue chunks of ice that will eventually calve from the glacier, each one shrinking the total ice mass. What will be the future of this glacier?  Who can tell? How much does global warming effect them? There are so, so many questions we need to answer about the health of glaciers… and of our beautiful planet!

Colours of ice! ©  JT  of jtdytravels; P1130471

Colours of ice! © JT of jtdytravels; P1130471

From afar the iceberg looks white. But what is white?

This close up shows the many colours that an artist would need to use.

Ice caves at Mendenhall.

Ice caves at Mendenhall.

The beautiful blue of the ice is much more evident under the glacier inside the Mendenhall Ice Caves. I found this photo in a wonderful set of photos of these ice caves on the internet and will add the site below for those who wish to enjoy that aspect of the glacier. Going into that cave is certainly something I wouldn’t do, but I’m always grateful to those who do and who share their experience.

Our thought for the day comes from the great naturalist, John Muir, who urged us all to:

“Keep close to Nature’s heart… and break clear away, once in awhile; climb a mountain or spend a week in a woods. Wash your spirit clean.”

This we hoped to do on this expedition into the wilderness of Alaska.

In our next post we’ll share a different aspect of our visit to Mendenhall Glacier…

 the native flora of the area, the Tongass National Forest.

Jennie and David

our other travel site is

www.dymusings.com

more travel photos are on our flickr site

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The internet link to the site for photographs of the beauty of ice inside Mendenhall Glacier is

http://www.huffingtonpost.com/2013/12/03/mendenhall-ice-caves_n_4374019.html

or

Ditch Your Responsibilities And Go Hike The Mendenhall Ice Caves

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