Fast forward to today, August 18th. Today was the day I got that chance to go and see what lay beyond that cold metal door to Independence Mine. I happened to catch a glance at last Sunday's newspaper, and there was a small section that just said "Independence Mine Underground Tours" with a phone number. I called to reserve spots for Lisa and I on Monday and got in by the skin of our teeth. These underground tours of the mine are only held once a year, and only 20 people are allowed per tour. Thankfully, due to such a large response, another tour group was added, so there were a total of 4 groups of 20. They're not free either. Its a fund-raiser for a local group that's involved with Alaska's State Park system. All I can say is that the $75 per person they charged was worth every single penny and then some!
We got started in the old Bunk House with a short introduction. The bunk house is this large, 3-story building that looks better from the inside than from the outside. Lisa and I checked ourselves in and received a couple of hardhats. It took us a few minutes to attach our headlamps to them, but we eventually got it. I can't remember the name of our guide, but a pleasant looking gentleman in in his late 30's to early 40's stepped up to gather everyone's attention. He handed out a couple of strange looking maps while he explained that his family owns one of the only remaining gold mines in operation- the Goldstone Mine, which was coincidentally only about a quarter-mile away.
He also talked about how to read these weird maps he gave us. Mine maps require a little more imagination than your standard highway map. You need to think in 3 dimensions while the piece of paper only shows 2. Our map looked like a jagged line that began in the upper-right corner and snaked it's way down toward the lower left. The measurement of distance is also different. These maps start with an area called "Surface"- which is the point on the face of the mountain where the mine actually starts. It's basically a zero-point. From there, distance is expressed in feet in terms of how far you get from the main opening of that particular vein. Our tour would take us past the 2000' level, or about a half-mile into the mountain.
After asking if there were any questions, we started the short trek up the hill to the mine. Lisa and I made sure we had all the proper gear before we lost our chance to go back.
-Headlamp
-Hard Hat
-Rain Pants
-Raincoat or waterproof coat
-Heavy socks
-Flashlight
-Knee-high Rubber boots
We had everything and were totally ready. I brought along my camera on the off-chance I'd be able to get some pictures, and started setting it up to have the best chance of taking some kind of photo in near pitch-darkness.
Once at the top of the footpath, our guide explained how some of the various kinds of machines work; mainly the drills and the trains. I thought it was really interesting to see him take us through a mock-demonstration of how to work the mucking train and ore cars. Its so completely different when there's someone there explaining this stuff compared to when you're there by yourself and you see this old, rusty train just sitting there.
We crowded around the entrance again to wait for a few out-of-shape stragglers and to get one final little "safety" talk. "Just watch your step, because there are holes in the track... Well, not deep holes, but they can trip you up pretty good if you're not paying attention." He also said to speak up if anyone's feeling claustrophobic, because it would be better to get that out of the way in the beginning instead of losing it way down in there.
The guide turned on his headlamp and opened up the door. We were standing out in the hot August sun, but a strong draft of cool air came from the darkness beyond. I was super excited and couldn't wait to start tromping down there! Everyone started lining up single file and entering the mine. The cold draft was strong enough roar past my ears, and the sound of falling water became louder. We stepped off the boardwalk and onto some waterlogged boards between the rails of the narrow train track. I looked down to see that we were all in ankle deep water. Well, Sludge was more like it. All the silt and dust made the water into a milky, grayish muck that flowed toward the surface. Our guide had us wait for a minute while he closed the door behind us and locked it. Can't have any bumbling tourists wandering around back here.
The sunlight was now gone, and looking forward past the other people, the mine appeared to be a straight tunnel extending far beyond the reach of my headlamp. The spacial dimensions were all relatively uniform, with our path always being about 10 feet wide. The height of the ceiling varied throughout the tunnels. Some areas had 7 feet of clearance, supported by a system of trusses and wooden beams. Other areas had a higher ceiling, up to 15 feet. Some areas were completely void of any supporting system at all, and other areas had these interesting metal plates that seemed to be attached to random areas. These plated were rectangular in shape. Each one was about 4 to 6 feet long, about 12 inches wide, and had 2-inch holes running down the middle. Large rock-bolts were put through two or three of these holes to fix and conform the plate to the wall of the mine. We made our way down the path, moving in a careful, shuffling like fashion. Every few dozen steps or so, there was a gap in the boards or rail ties, and my foot would sink in to the gloppy sludge almost up to my knee. It took a little bit of effort to release myself, but after some graphic slurping and sucking sounds, my foot would become free.
Water was dripping everywhere. Pipes were installed back when the mine was operational to carry water to the places where they needed it, but after decades of neglect and disuse, after being exposed to the harsh Alaskan winters, whole sections of pipe burst or had fallen from their fixtures. The water also came from the mountain itself. The walls and ceiling, the few bits of equipment that remained, EVERYTHING had this grimy film of water and grit. This stuff got everywhere the moment you touched it. I had to reach out and grab the wall to keep my balance in a few spots, and subsequently, everything I touched afterwards was coated in a light gray dusty film.
It was cold, too. The tunnels throughout the mine remain at a constant 39 degrees Fahrenheit, and that's during the summer months. Our guide explained to us that some sections of this mine and a few others are completely inaccessible now because of ice plugs blocking the shafts. We could see our breath and all the particulate matter in the beams of our headlamps. Occasionally, a stray drop of water would fall from the ceiling on to the back of my neck. Boy, if that doesn't get your attention, you've got problems!
One thing that really amazed me was when I noticed the rock that made up the vast majority of the walls in this mine. We were surrounded by what could have been hundreds of millions of tons of granite. It was everywhere, and I thought it was just amazing that there was probably enough granite in that mountain alone to give everyone west of the Mississippi new kitchen counter-tops!
After walking for several minutes, we came to an area that widened. On one side was a ladder that went up to old vein of gold and quartz, but it was semi-hidden by a small waterfall The guide explained how it took one whole year to dig and blast about a thousand feet in to the mountain back when the mine first started running back in 1898. We moved on, and noticed a point where the old train track had stopped and gave way to a hard-packed gravel floor. Evidently, the mine had reopened for a very brief period in the 1980's, when gold prices were hitting all-time highs. Thanks to advances in technology, miners were able to blast away and harvest more gold ore, and at a much faster pace. They decided to abandon the small trains for more versatile vehicles with rubber tires. An interesting thing though, is that mining methods had to change when people stopped using trains. Instead burrowing in straight lines, miners dug in a spiral pattern, to better utilize these newer trucks and vehicles.
There were several spurs and offshoots from the main tunnel, and while I would've loved to explore some more, we ended up moving upward through a spiral tunnel. After walking another 800 feet or so, we climbed a short ladder to get to a more cramped and small area. After squeezing into this new little "room", our guide directed our attention toward one of the walls. He shined a flashlight around, revealing the odd shape of this room. Thick wooden support beams were hammered into place through the increasingly short space that used to be a vein of gold ore. Some of the vein was still there, so we were able to see a thick band of white quartz with darkish streaks running through it. After shining my light at it, I noticed a peculiar glittering in those streaks. With closer inspection I was surprised to see that these dark streaks were in fact the gold itself. I can only imagine the excitement one would feel when he or she came across that same glint for the first time. That excitement followed by the strong desire to find more of it must be the gold fever I've heard about.
The mind blowing part though, is that now we were surrounded by all this gold. But the gold itself was trapped within the quartz crystals. It was spread out, too. Basically, every 1,000 pounds of ore (quartz and gold) would yield about 1 ounce of pure gold. So, you have your work cut out for you if you want to get that return on investment! The guide explained that the ore was removed from the mountain and sent to a mill where it was pulverized into small chunks of gravel, and then processed again to crush it into the consistency of sand. From there, it was sent through an area with water. Gold is much heavier than quartz, so the gold would sink to the bottom of these tanks before the quartz could. Here's where I thought it got really interesting. Mercury was used in the process as well. For whatever reason, mercury literally sticks to gold, so they were able to get every last bit of gold by pouring mercury into this mixture. The mercury and gold sink to the bottom where they are retrieved. To separate the mercury from the gold, this gooey mixture is poured onto a slide made of copper plates. Mercury sticks to copper more than it sticks to gold, so by the time this stuff gets to the bottom, its like a gray goo. Workers would then scrape the mercury off of the copper to use it again on the next batch of gold ore. This gray goo was then strained and squeezed through a chamois cloth to get more mercury out of the mix. When this step was done, all that's left is some stuff that looks like gray paste. The paste is then wadded up and placed in a special type of furnace that gets sealed up very carefully and tightly- Mercury is toxic enough by itself, but breathing in the fumes from heating it up are much worse for you. As this paste heats up, the mercury begins to run off and boil away, leaving only a hunk of gold that looks like a sponge- hence it's name, the "Gold Sponge". These gold sponges are then taken to a smelter where they are melted down and formed into bars. And that's the how it's done! At least, up here...
I know that gold is heavy and all, but our guide had a small bar that he and his grandfather had forged together when he was a boy. It was about the same size as a Heath candy bar, but it weighed 2 pounds. We were all able to hold it for a minute or two and then struggle to hand it off to the next person after learning that a 2 pound bar of gold is worth about $20,000 at this very moment. Darn. I want a gold bar of my own!
From there, we started making our way back. The last really cool thing we saw appeared to be a supply closet doorway covered in ice. However, after looking at it a little closer, we saw that it wasn't ice at all. It was mold! It looked like it was quite a healthy specimen too. I guess the conditions down there are just right for this specific kind of mold to grow there. It looked really soft and fuzzy, but hey- it's MOLD. I'm not going to touch it.
We came back out the same way we went in, and so ended the one of the coolest things we did all summer. For anyone that lives up here in Alaska, I highly recommend checking it out next year. For those of you not fortunate enough to live up here, it's worth checking out if you happen to come up here for vacation in mid-August! Just do a google search for Independence Mine Underground Tours.
Pictures will be posted shortly. Photography in there is very challenging if not impossible. I hope to go back there next year with some better equipment.
Devious Comments
did they tell you that you can use a black light to tell if there is gold in a rock of quartz? pure gold, like thick gold viens, show up black, but there is also a glow to the edges and thinner spots have more glow. lime green,yellow,purple.
On a trip to arizona we got to stop buy a gold mine on the old highway they siad was the start of the gold rush. We did a short tour..but they took us down into in deep enough to enter a simaler room of quartz and gold viens. they had black lights there to show us what it looks like. They also had a portion that actualy runs past one of the tectonic plates! it broke thier drills. Later my family would like to go back and do the three hour tour of the mine.
The one in alaska sounds real neet, we never got to go check that area out when i lived up there.
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<Rez> We often belive so much that we realy know all we need to know...and it is not until retrospect that the depths of our idiocy truely are revealed.
<Koi> ....yours must be an oceanic cavern.
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Now with 40% MORE Misanthropism!
In addition to creating things to look at, I also make things that will hurt your ears. Hear it at: [link]
will you be posting photos from the mine?(can't remember if i asked that)
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______________________________ ______________________
<Rez> We often belive so much that we realy know all we need to know...and it is not until retrospect that the depths of our idiocy truely are revealed.
<Koi> ....yours must be an oceanic cavern.
--
Now with 40% MORE Misanthropism!
In addition to creating things to look at, I also make things that will hurt your ears. Hear it at: [link]
I can't wait to see them. my mom is easer to see them too.
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______________________________ ______________________
<Rez> We often belive so much that we realy know all we need to know...and it is not until retrospect that the depths of our idiocy truely are revealed.
<Koi> ....yours must be an oceanic cavern.
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