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Posts Tagged ‘Colored Ice’

After posting the 2 part blog post just before Christmas about searching a new rail trail to find ledges where huge icicles might grow I realized that many readers might have no idea why I would be looking for such things, so I visited one of my favorite rail trails in Westmoreland. This is a deep cut that was blasted through a hillside in the mid-1800s so the Cheshire Railroad could get to Vermont. Groundwater constantly seeps through fissures in the stone and in winter it freezes into huge ice columns as big as tree trunks.

The size of the ice columns can be quite amazing but sometimes the minerals in the groundwater color them and make them even more amazing. The walls of this man made canyon soar up to 50 feet high in places so the ice columns also get very tall. They must be perfect for climbing because the New Hampshire branch of the Appalachian Mountain Club comes here to hold ice climbing clinics.

As luck would have it they were there climbing the ice on this day. Though I didn’t ask I’m assuming that the climber in this photo was relatively new to climbing, because he was on ice that wasn’t very tall. I met climbers here last year who described this kind of climb as a “baby climb.” Just to get used to it, I would think. I try not to be too intrusive or distracting when I see climbers so I don’t ask to many questions for fear of breaking their concentration.

If you are wondering what became of all that blasted stone, in this case the railroad used it to build mighty retaining walls along the sides of the cut where there was hillside soil that had to be held back.

This view is of the opposite end of the canyon from where the ice climbers climb. Though the ice here is nearly as big as on the other end I’ve never seen them climb here, and it wasn’t until this year that I finally figured out why.

At least I think I know why they don’t climb here. The drainage ditches are full of water on this end of the canyon and there is no water in them where the climbers climb. These ditches are almost knee deep in places and I’d hate to climb down an icicle and find my feet in frigid water. This is the section where most of the interesting plants grow though, so when I need to get close to the walls I put on rubber boots and walk in the ditches. I don’t do it often because of the danger of falling ice and stone, but I’ve done it a few times.

These drainage ditches were designed to carry water out of and away from the rail bed, so the water is always flowing like a stream, and the movement keeps the ice columns from growing any further than the surface of the water. It looks like they have been cut off right at the water’s surface all the way down the ditches.

It’s always cold here in winter and it often gets cold enough to freeze the surface of the drainage ditches, and that’s what happened in a few spots on this day. Where they had frozen over long feathers of hoar frost had grown. Without thinking I hold my breath when I’m taking photos of these beautiful, fragile things because all it takes is the warmth of a stray breath to destroy them.

In some places the hoar frost had grown into sharp looking needles. It’s odd to think of frost growing on ice but it happens quite frequently when conditions are right. Humidity seems to play a large part in it.

I’ve learned much from this man made canyon and one of the chief things among them is how cold can change the appearance of stone. It brings out colors in the stone for instance, that aren’t seen when it’s warmer. Colored stains from over a hundred years of seeping, mineral laden groundwater appear as if by magic when it gets cold.

But do the minerals color the ice? I think they do, because I can’t think of any other thing that would. And the color doesn’t come in just green; I’ve also seen orange, blue, brown, and even black ice here. The blue ice is colored by its own density and clarity and by the way it reflects light, but the other colors must come from some foreign material. Brown ice for example, might simply be colored by soil. Orange ice could be colored by the iron in the stone. There’s a lot of it here.

You can see in places how the mineral laden water colors the snow as well as the ice.

Ice isn’t the only reason I come here. There are many unusual plants here that I don’t see anywhere else, and one of them is the green algae called Trentepohlia aurea. Though it’s called green algae a carotenoid pigment in the alga cells called hematochrome or beta-carotene color them orange. It’s the same pigment found in carrots, but in this instance it hides the green chlorophyll in the algae. I couldn’t get close enough to show it but these algae are very hairy. Though I’ve seen orange ice here it wasn’t where the few colonies of algae grow so I doubt they have anything to do with coloring ice. I keep hoping to see the algae producing spores, but so far I haven’t had any luck. In certain parts of the world algae have produced enough spores to color the rain. If you ever hear of red rain falling chances are it’s because of algae spores.

Another plant that I come here to see is the beautiful, reptilian, great scented liverwort (Conocephalum conicum.) This liverwort gets its common name from its clean, fresh scent. It is the only liverwort with this reptilian appearance, so it’s easy to identify. They grow on these ledges by the thousand, constantly watered by splashing groundwater. They like a lot of water but it has to be absolutely clean and unpolluted, so finding this liverwort is a good indicator of very clean water.

White tipped moss (Hedwigia ciliata) also grew in an area where it was constantly splashed by dripping groundwater, and the tiny water droplets made it even more beautiful. One of the first things you notice here in this icy canyon is the sound of dripping water. It seeps and drips year round, winter and summer, through the entire length of the canyon and the sound can be very pleasing or very annoying, depending on your mood. I’ve met people here who described it both ways. There are those who feel that the sound of water intrudes on the peacefulness of a place I suppose, but to me it is like a musical gift from the earth.

Can Ice be beautiful? Oh yes it can, and these windblown icicles looked every bit as beautiful as Lalique crystal to me. For those who may not know, Rene Lalique was a French glass designer who practiced his art in the Art Noveau period (1890-1910.) He is known today for his opaque, matte finish glass, which can look much like these icicles. He was completion for Louis Comfort Tiffany, so if you received a piece of Lalique crystal for Christmas you are very lucky indeed.

Unfortunately, though the opaque finish on Lalique crystal means good things, on ice it does not; especially if you happen to be an ice climber, because ice that looks like this is rotten and unsafe. Ice becomes rotten when water, air bubbles, and/or dirt get in between the grains of ice and cause it to honeycomb and lose its strength. Instead of a sharp ringing crack when it is struck it produces more of a dull thud. The grayish white color and matte finish are a sure sign of rotten ice, and a good sign that you should stay away from it when it’s hanging over your head.

Each winter I come here and stand in awe of the old lineman’s shack, which still stands against the weight of the snow even though it lacks half its roof, a wall and a half, and most of its floor. It has stood here for well over a century and is the very definition of well built. If it wasn’t for people slowly pulling it apart I have no doubt it would still look just as it did when it was built.

The sun was getting lower and a single ray fell on a green icicle. Though it lit up the icicle it had no heat to melt it, and this reminded me how very cold it was here on this day. This canyon usually runs about 10 degrees cooler than it is on the outside and it was 27 degrees F when I came in, so it was no wonder that my toes were cold. I always have to be careful that I don’t wander too far out of myself and get lost in this winter beauty because frostbite is always close by.

With a last look at some beautiful little frost feathers back out into the world I went, hoping that it would be just a bit warmer there. I’ll have to return in a month or two when the icicles should be as big as trees.

In the winter the world gets sharp. Beautiful things happen. ~Peter Fiore

I hope everyone had a wonderful Christmas. Thanks for coming by.

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1-ice-climbers

All of the sudden we’re having some warm weather with temperatures expected to reach near 60 degrees tomorrow, so I thought I’d better get down into the deep cut rail trail in Westmoreland before the ice began to melt and fall from the walls. As luck would have it there were a couple of ice climbers there. Ice climbers train here and call the place the icebox.

2-ice-climbers

They were two women climbers who said they were doing a “baby climb” and I had the feeling that they were just starting out. They were climbing ice that wasn’t that high; probably 20-30 feet. I didn’t hang around and bother them but I hope they did alright. I’ve read that ideal ice conditions for climbing happen between 20 and 35 degrees F because those temperatures produce the just right “plastic” ice; not cold enough to shatter, and not warm enough to melt. The temperature when I came here on this day was around 45 degrees and by the time I left I was sweating.

3-climbing-anchor

There are plenty of these sturdy looking anchors, called “hangers” screwed into the stone but I think they had their rope tied to a tree. How they get it up there without actually climbing the ice is always a mystery to me. Maybe they walk along the top of the man-made canyon first and tie it off.

4-rotten-ice

Some ice falls looked dull and grayish white because they were rotten. Ice becomes rotten when water, air, and / or dirt get in between the grains of ice and it becomes honeycombed and loses its strength. Instead of a sharp crack when it is tapped it sounds more like a dull thud. It would be dangerous ice to try and climb, so you have to be a good judge of ice to be a climber. The color and matte finish of this example were dead giveaways that it was rotten.

5-ice-falls

This huge ice fall was shiny and transparent; two signs that it isn’t rotting and is most likely climbable. It was probably around fifty feet high and I couldn’t back up far enough to get it all in one photo. You don’t want to be here when ice like this starts melting and falling. The sun warms the stone enough to release the ice where it touches stone, and at times ice columns like this can be free standing. When it can no longer support its own weight it can fall, and I’ve seen ice as big as tree trunks lying across the trail.

6-colored-ice

The ice here comes in many colors and I think that it has to be the minerals in the constantly seeping groundwater that color it.

7-mineral-staining

The stones have mineral stains on them throughout the canyon. There is a lot of iron here, which at times colors the stones bright red.

8-orange-ice

In this spot not only was the ice colored but the snow as well. This is the first time I’ve seen this.

9-snowmobilers

People came through wearing snowshoes but you don’t need them here. In winter this is a popular spot for snowmobiles, and they pack the snow down enough so in most places it’s like walking on a sidewalk. I’d bet that I saw 30 snowmobiles come through on this day; the busiest I’ve ever seen it.

10-stone-wall

But snowmobiles can’t do much about the snow depth and this year there is about two hard packed feet of it on the trail. I like to walk in the drainage ditches to get close to the plants and mosses that grow on the walls, and I was able to in a couple of spots, but it was mostly too deep. The top of the actual trail should normally be about a foot above the base of the wall, so you can see how much snow was on it. I’ve climbed down in there before in winter only to wonder how I’d ever get out. This beautiful retaining wall was built with some of the stone that the railroad crews blasted out of the canyon nearly 150 years ago, and it is still as solid now as it was then. Notice how it leans back into the hillside, just as any good retaining wall should. I’d guess that it’s about 6-8 feet high.

11-moss-on-stone

I had to stand on the trail and wish I could get closer to mosses like this one, but it was warm enough to be in a jacket on this day and warm rather than cold breezes blew through the canyon. It was a hint of the warm breath of spring, and once that warm breeze melts all the ice and snow I’ll be able to get a better look at the plants.

12-wet-moss

White-tipped moss (Hedwigia ciliata) is fairly common and I find it mostly growing on stones in sunny spots. In this case it was growing on a ledge where dripping ground water constantly splashed it. I was able to find a path through the snowy ditch to get close to it and saw that it was shedding water quickly. That meant that every time I clicked the shutter a water droplet or two moved, so that’s why some of them are blurred. I never realized how much water runs through the soil below our feet until I came here. It’s always dripping, winter and summer, through the entire length of the canyon.

13-blue-ice

I haven’t seen much blue ice here this year but I did find this example. I’ve heard that blue ice is the densest of all but I never knew what forces combined to make it that way. I recently read on Wikipedia that ice “only appears blue when bubbles do not interfere with the passage of light. Without the scattering effect of air bubbles, light can penetrate ice undisturbed.” So apparently blue ice has fewer air bubbles in it than other colors, and without all those air bubbles getting in between the ice crystals stronger bonds can form, making it more dense. If I understand what I’ve read correctly the more dense ice is the more red and yellow light are scattered and / or absorbed, leaving just the light at the blue end of the visible light spectrum for us to see.

14-green-algae

The green alga (Trentepohlia aurea) that grows here and there on the walls seems to reach its peak orange color in winter, but I don’t know if that coincides with spore production or not. In fact I’m not sure if I’d know when it was producing spores because it always looks the same to me.  But it does produce spores; a blood red rain fell in parts of Spain in 2014 and it was caused by similar algae named Haematococcus pluvialis. The same thing happened in Texas in 2013, in Sri Lanka in 2012, and in India in 2001, each event seemingly caused by different algae. Yellow, green, and black rain has also been reported.

15-green-algae

Though it is called green algae a carotenoid pigment in the alga cells called hematochrome or beta- carotene, which is the same pigment that gives carrots their orange color, hides the green chlorophyll. It’s very hairy and is usually very hard to photograph. I think this is the best macro photo I’ve ever gotten of it after about 6 years of trying.

16-great-scented-liverwort

The beautiful reptilian great scented liverworts (Conocephalum conicum) like to grow in places where they are constantly splashed by or dripped on by very clean ground water. Though they like a lot of water they won’t stand being submerged in it and die back if the water level rises. Their common name comes from their scent, because if you squeeze a piece and smell it you smell something so clean and fresh scented you’ll wish it came in a spray bottle. I took this photo from about 10 feet away and was astonished to see the amount of detail that the Canon bridge camera I used captured. That camera usually isn’t any good for such things so I use it for landscapes.

17-ledges

I’m surprised that more animals don’t fall from these ledges. It isn’t hard to imagine a deer bounding through the woods and suddenly finding itself in midair, but they must have a sixth sense about such things. I did hear of a moose that fell in here once, He got so badly hurt that the Fish and Game Department had to put him down, which was too bad. There aren’t many animals in these parts that could survive a 50 foot fall.

18-linemans-shack

After an afternoon of picking and poking and gawking and gaping I finally made it to the old lineman’s shack, which is my turn around point. Somehow this old building has made it through another winter.

19-linemans-shack

With half of it gone I don’t know how it stands up to the snow load.  It says a lot for the railroad workers who built it.

20-bird-nest

I saw a bird’s nest up in the rafters that looked relatively fresh.

21-grafitti

The graffiti inside the old shack always reminds me of my father. He would have been 18 in 1925 and he lived near here, and I always wonder if he came to see the ice like I do. None of the initials match his but he could have easily walked these tracks through here. Trains would have been running then.

22-rail-trail

Because of our unusually warm January the ice didn’t grow as big as it has in the past but there is still enough to be dangerous when it starts falling, so this will be the last trip through here for me until probably April. By then the canyon walls will be well on their way to becoming covered by lush green growth that always reminds me of the Shangri-La that James Hilton wrote about in Lost Horizon.

Our minds, as well as our bodies, have need of the out-of-doors. Our spirits, too, need simple things, elemental things, the sun and the wind and the rain, moonlight and starlight, sunrise and mist and mossy forest trails, the perfumes of dawn and the smell of fresh-turned earth and the ancient music of wind among the trees.~ Edwin Way Teale

Thanks for coming by.

 

 

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1. The Icebox

Each winter seeping groundwater creates columns of ice that grow to unbelievable proportions in a deep cut railroad bed that lies slightly north of Keene. Ice climbers call this place “the icebox” and come here from all over New England to train. The New Hampshire branch of the Appalachian Mountain Club also holds ice climbing clinics here. I don’t climb; I just come to see beauty of a kind that I can’t see anywhere else.

2. Blue Ice

Some of the ice is blue. This example looked very solid and climbable.

3. Green Ice

Some ice is green. This example was on its way to being big enough to climb but I don’t know if the ice climbers will climb green ice. I’ve only seen them climb blue ice, which is very dense.

4. Icy Grotto

This ice formed a kind of shallow cave or grotto that I could have stepped into if I wasn’t so wary of falling ice and stone. It happens fairly regularly here and you don’t want to get hit by it.

5. Running Water

Most of the groundwater seeps through cracks in the stone but in places it runs in small streams and this is one of those places. One of the constants here is the sound of trickling water, winter and summer alike. The ice in this photo was formed by splashing water and was crystal clear. This place has taught me that there are differences in the clarity of ice, depending on how it has formed.

6. Drainage Ditch

The drainage ditches that the railroad engineers built 150 years ago at the base of the ledges still work as they were designed to and carry the water away down the gentle grade, keeping the rail bed high and dry. As the snow gets higher these ditches get deeper. I often put on knee high rubber boots and walk in them to explore the rock faces, but I didn’t do so on this trip. It was the ice I came to see.

7. Drainage Ditch

The water in the drainage ditches never freezes completely and its movement cuts off the ice on the ledges at water level. This means that the ice that looks like it’s hanging from the ledges really does hang and isn’t supported by the ground at all in many places. When it comes free from the walls and falls sometimes it’s as if a crystal tree fell across the trail. I wonder what the railroad did when such large pieces of ice fell on the tracks when the trains were running.

8. Orangey Brown Ice

Last year the ice in this spot was bright orange but this year it leaned more toward orangey brown.

9. Mineral Stains

Mineral stains on the rock faces tell part of the story of the colored ice but there are many reasons that ice can be colored. Even a higher density can turn it blue.

10. Orange Algae

There are other colors on these rock walls but they aren’t in ice. This orange patch is caused by green algae called Trentepohlia aurea. Though it is called green algae a carotenoid pigment in the alga cells called hematochrome or beta- carotene, which is the same pigment that gives carrots their orange color, hides the green chlorophyll. I’m not sure if the algae color any ice here.

11. Liverworts

Large areas of stone are covered in places by liverworts but they don’t seem to mind being encased in ice for the winter. In the spring you wouldn’t know they had seen any ice at all.

12. Mossy Ledges

Many mosses turn a yellower shade of green in winter but otherwise ride it out with little change.

13. Fern in Ice

This fern was completely encased in ice. Since it is an evergreen fern it will most likely lose its leaves in spring when new growth begins.

14. Dirty Ice

I think there must be soil washed along in the groundwater for ice to look dirty like this example does.

15. Ice Columns

I was hoping this shot would convey a sense of how tall this ice is but it really doesn’t.  These ice columns are too small in diameter to climb but the ice climbers go for the taller ice I’ve noticed, and these were plenty tall.

16. Green Ice

Much of the ice was half what it was last year but we still have February to get through. One of the things that made last February so memorable was the extreme below zero cold that went on and on for most of the month. If that happens this year this ice will become huge like it was then.

17. Icicles

This past week has been the coldest we’ve seen this winter so I’m sure the ice has grown some. I’ll have to visit it again before it all starts to melt away in March. When I leave here and write a post about the place I often marvel at having virtually no memory of how cold it was, so captivating were the colors, sounds, and shapes. When great joy passes through you inconvenience slips away. You remember the joy but not the inconvenience.

One moment the world is as it is. The next, it is something entirely different. Something it has never been before. ~Anne Rice

Thanks for stopping in.

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1. Trail

If you’re tired of all things winter then this post isn’t for you because it’s about being in a freezer of sorts; a man made canyon blasted out of solid rock where seeping groundwater freezes into icicles that grow to the height and diameter of tree trunks. I visited this place last week because I thought that, since this was just about the coldest February that we had ever seen, I’d be able to see some big ice. I wasn’t disappointed.

2. Green Ice

I think this is the biggest “icicle” that I’ve ever seen. It had to have been 15-20 feet out from the rock face and 40-50 feet tall. It is the sweetheart of the ice climbers who come here and, if you look carefully at the very top of the photo, you can see the legs of two ice climbers dressed in blue who were tying off their ropes, preparing to climb down this monster.

3. Black Ice

Right beside the green ice in the previous photo was this black / brown ice, which I’ve never seen here or anywhere else before. I’d guess that it was either soil or minerals that gave it this color. Note how the snow below it looks dirty.

4. Colorful Rocks

You can see colored stone all through this place and, though some of the color comes from lichens and algae, much of it is from minerals like iron that leach out of the soil.

5. Mineral Stains on Stone 2-2

Many of the mineral stains are orange but some are yellow, red, green, and very few a light blueish gray color.

6. Orange Ice

The last time I came here I saw this orange ice for the first time, and by now it had tripled in size. The orange mineral stain on the stone face in the previous photo was very near this spot, so I’m fairly certain that iron must be staining the ice.

7. Blue Ice

My favorite color is the blue ice, and this was the bluest ice I’ve ever seen. There was water running down the rock face behind this ice column and it was as noisy as a rushing stream in spring. I’ve heard that blue ice is very dense and that its color comes from the way certain wavelengths of light are absorbed by it and others are reflected by it.

8. Trail

It seemed as if you could pick a color and there it would be, frozen into the ice. It also seemed like the ice had covered all of the mosses, liverworts and every other growing thing that lives here.

9. Delicate Fern Moss

There were still small islands of green to be seen here and there but I didn’t see any liverworts. You wouldn’t think that moss with a name like delicate fern moss (Thuidium delicatulum) could grow in a place like this but there it was. Maybe it’s not quite as delicate as its name suggests.

10. Spinulose Wood Fern

Ferns too could be seen peeking out from under the ice. I think this one is a spinulose wood fern (Dryopteris carthusiana,) which is one of our few evergreen ferns. It likes lots of water. In the summer almost every inch of these vertical walls is covered by some form of green, living thing. They must all be quite tough to survive essentially being frozen inside of ice for the winter.

 11. Lichen on Stone

I saw a few interesting lichens but I couldn’t get close enough to them to know what they were. Typically in winter there is a good 2 to 3 feet of snow on the rail bed, and if you add that to the foot or so depth of the ditches from dry ground, it’s quite a drop. Getting down into them isn’t too bad but getting out can mean a crawl in the snow.

12. Ice in Drainage Ditch

I was surprised to see that the ditches weren’t frozen over in many areas. As cold as gets in this place I can’t imagine what keeps them from freezing.

13. Ice Column

I saw one ice column that looked like someone had sculpted it into a real column like shape. It was taller than I was.

 14. Diagonal Seep

It was easy to see how groundwater seeped from this diagonal crack in the stone face. When you think about the water that froze and expanded inside the crack it’s not hard to understand how Ice can tear stone apart.

15. Green Ice

It’s starting to slowly warm up a little now, so I’m not sure that it’ll be a good idea to come here again until the ice has melted. These ice columns are tall enough to cross the entire trail when they fall and are easily heavy enough to crush a person, so this is a good place to stay away from when the ice starts rotting. I saw a few ice formations in sunny spots that were already rotten.

For those who aren’t familiar with rotten ice; when ice rots the bonds between the ice crystals weaken and water, air or dirt can get in between them and cause the ice to become honeycombed, and to lose its strength. You know that clear ice is rotten when it turns a milky grayish-white color, looks to be full of small bubbles, and has a dull sound when it is tapped.

In the winter, the world gets sharp. Beautiful things happen. ~Peter Fiore

Thanks for coming by.

 

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