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Holes

Title text: If you're thinking 'Wait, a giant crystal cave in Mexico? What's that?' then I'm SO excited for the image search you're about to do.

Explanation[edit]

This is incomplete:
This page was created recently, using the power of New Mexican crystals, and found in a hole. Don't remove this notice too soon. If you can fix this issue, edit the page!

This comic shows some of the largest holes in the world, both manmade and natural. It is somewhat unusual to refer to many of these as 'holes', which is more normally used to describe small things — most people would hardly call a vast ocean trench a 'hole'.

A table expanding on (but not literally) the various holes is shown below:

Feature	Type	Approx. elevation/depth	Notes	More information
Bingham Canyon Mine	Open-pit copper mine	~+2 km	Utah, USA	One of the world's largest human-made excavations, over 1 km deep and several kilometers across.
Veryovkina Cave	Cave	~−2.2 km	Georgia (Abkhazia)	Currently the deepest known cave on Earth, explored to more than 2.2 km below its entrance.
Mponeng Gold Mine	Gold mine	~−4 km	South Africa	Among the deepest operating mines ever built, reaching nearly 4 km below the surface.
Sanford Laboratory	Underground laboratory	~−1.5 km	South Dakota, USA	Former Homestake Gold Mine, now used for experiments in particle physics, neutrinos, and dark matter.
Giant Crystal Cave	Cave	~+1 km	Naica Mine, Mexico	Famous for enormous gypsum crystals, some over 10 m (33 ft) long, formed in hot mineral-rich groundwater.
Derinkuyu Underground City	Underground city	~+1.5 km	Turkey	Ancient underground city capable of sheltering tens of thousands of people and their livestock.
WIPP	Nuclear waste repository	~+0.6 km	New Mexico, USA	The Waste Isolation Pilot Plant stores long-lived radioactive waste in a stable underground salt formation.
Restof [Retsof] Salt Mine	Salt mine	~−0.6 km	New York, USA	Once the largest salt mine in the United States before major flooding in the 1990s.
Jinping Laboratory	Underground laboratory	~+1.6 km	Sichuan, China	Built beneath Jinping Mountain and protected by over 2 km of rock, making it one of the world's deepest underground laboratories.
San Andreas Fault Observatory Borehole	Geological scientific borehole	~+0.6 km	California, USA	Aimed at collecting geological data about the San Andreas Fault for the purpose of predicting and analyzing future earthquakes.
CFB North Bay	Military bunker	~+0.3 km	Ontario, Canada	Cold War command center carved into solid rock for North American air defense.
Woodingdean Water Well	Well	~−0.4 km	England, United Kingdom	Hand-dug in the 19th century and still the deepest hand-excavated well ever completed.
Diefenbunker	Military bunker	Near sea level	Ontario, Canada	Massive four-story underground bunker built to house the Canadian government after a nuclear attack.
Deep Underground Command Center	Proposed military bunker	~−1 km	Nevada, USA	A proposed U.S. command facility that was never constructed after extensive planning.
Lake Peigneur	Lake	~−0.2 km	Louisiana, USA	Famous for a 1980 drilling accident that transformed a shallow freshwater lake into a much deeper saltwater lake.
Sydney Opera House Parking	Parking garage	Slightly below sea level	New South Wales, Australia	Deep underground parking beneath one of Australia's most recognizable landmarks.
Onkalo Spent Nuclear Fuel Repository	Nuclear waste repository	~−0.4 km	Satakunta, Finland	Designed for permanent disposal of spent nuclear fuel for over 100,000 years.
Raven Rock	Military bunker	Near surface	Pennsylvania, USA	Alternate U.S. military command center, sometimes called the "Underground Pentagon."
Delaware Aqueduct	Water tunnel	~−0.3 km	New York, USA	The world's longest water tunnel, supplying drinking water to New York City.
Wieliczka and Bochnia Salt Mines	Salt mines	~−0.3 km	Lesser Poland Voivodeship, Poland	Historic medieval mines famous for underground chapels, sculptures, and vast chambers carved from salt.
Atchison Storage Facility	Underground storage	Near surface	Kansas, USA	A former limestone mine converted into climate-controlled storage for records, film, and valuables.
SNOLAB	Underground laboratory	~−2 km	Ontario, Canada	Located inside an active mine and used for dark matter, neutrino, and astroparticle physics experiments.
Detroit Salt Mine	Salt mine	~−0.35 km	Michigan, USA	Extensive salt mine directly beneath downtown Detroit and the Detroit River.
Hongyancun Subway Station	Subway station	Near surface	Chongqing, China	One of the deepest metro stations in the world due to the city's steep mountainous terrain.
Nuclear Test Shafts	Test tunnels	~+1 km	North Korea	Underground tunnels used for nuclear weapons testing beneath Mount Mantap.
Super-Kamiokande	Neutrino detector	~−1 km	Gifu Prefecture, Japan	Giant underground tank containing 50,000 tonnes of ultra-pure water used to detect neutrinos.
Gran Sasso Laboratory	Underground laboratory	~+0.7 km	Italy	The world's largest underground research laboratory by volume.
Modane Laboratory	Underground laboratory	~+1.5 km	France	Built beneath the Alps to shield sensitive physics experiments from cosmic rays.
Gotthard Tunnel	Railway tunnel	~+0.6 km	Switzerland	The world's longest railway tunnel, stretching 57 km through the Alps.
Cheyenne Mountain Bunker	Military bunker	~+1.5 km	Colorado, USA	Hardened military complex built inside a granite mountain to survive nuclear attack.
Kola Superdeep Borehole	Scientific borehole	~-12 km	Murmansk Oblast, Russia
Lake Baikal	Lake	~−1.6 km	Russia	The world's deepest and oldest freshwater lake, containing roughly 20% of Earth's unfrozen surface freshwater.
Sediments under Lake Baikal	Sedimentary deposit column	~-8km	Russia	Lake Baikal sits atop a geological rift, and accumulated sedimentary layers beneath it extend some 7km into the rift.
IDDP-2 Borehole	Geothermal energy borehole	~	Iceland
Dead Sea	Salt lake	~−0.4 km	Israel/Palestine/Jordan	Earth's lowest exposed land surface, famous for extremely salty water that allows people to float easily.
Ryfylke Tunnel	Road tunnel	~−0.3 km	Norway	One of the world's deepest subsea road tunnels.
Pantai Remis Mine	Tin mine	Near sea level	Malaysia	A flooded open-pit tin mine that eventually became a lake after its seawall collapsed.
Great Blue Hole	Marine sinkhole	~−0.1 km	Belize	A giant circular marine sinkhole popular with scuba divers and marine researchers.
JOIDES Resolution Expedition 307	Scientific ocean borehole	~−6 km	Atlantic Ocean	Ocean drilling expedition that cored deep into the seafloor to study Earth's geology and climate history.
Deepwater Horizon Borehole	Deep water oil well	~
Glomar Challenger hole 504B	Scientific ocean borehole	~
Mohole	Scientific ocean borehole	~
JOIDES Resolution Expedition 329	Scientific ocean borehole	~	Atlantic Ocean	Ocean drilling expedition that cored deep into the seafloor to study Earth's geology and climate history.
Mariana Trench	Oceanic trench	~-10 km	Pacific Ocean	The deepest oceanic trench on Earth. At the bottom, the pressure exerted by the kilometers of water above is about 15000 psi.

Transcript[edit]

This is one of 30 incomplete transcripts:
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This is a test. PoolloverNathan^{[stalk the blue seas]} 20:48, 16 March 2021 (UTC)

A foreign student asked me to help fight against his math teacher. That was unusual. He was in that class for just a couple of weeks. The teacher's phone number was sent to me. The student asked me to spam-call the teacher. 172.71.155.55 22:58, 18 September 2023 (UTC)

here i'm just messing around in html, ignore this

^furhhfghure _{guyrburgryhuyvfr} "rvhru"

interesting way of writing quotations xd

hmmm this one of putting "<p>" in a line break will come in handy for when i want it to start at the same place than the first line

Please beware that <p> on mediawiki also disables automatic paragraph breaks, so you need a closing </p> or you'll break automatic paragraph formatting for the rest of the page. Zmatt (talk) 22:06, 31 July 2024 (UTC)

edit: da hek did that "</div>" come from An user who has no account yet (talk) 14:14, 13 October 2023 (UTC)

hi uh its hard to get here. is this a reference to undocumented feature??? hmm... this is interesting.
108.162.241.216 02:05, 23 November 2023 (UTC)

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yum yum ^{[citation needed]}

Hiuiedeixgeyceiyedhcdiedcve {{trout}}

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<a href=" [AT THE JULY 28TH MEETING][tab] "Cancel the meeting! Our cover is blown."> More testing: hello doesthiswork (yesitdoes) This isn't a good name (talk) 22:44, 28 January 2026 (UTC)

‮hi 164.58.172.158 14:21, 23 February 2026 (UTC)

What is this?????????????????????? King Pando (talk) 04:25, 10 March 2026 (UTC)‭

Hello 107.1.219.44 19:29, 29 April 2026 (UTC)

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2 July 2026

		N 15:34	Talk:3266: Holes‎‎ (23 changes \| history) . . (+4,675)‎ . . [TheusafBOT‎; RG‎; Elektrizikekswerk‎; 60.240.65.62‎; 46.150.68.106‎; 217.95.141.233‎; 216.25.182.141‎; 2003:ef:9715:a200:1cff:609:f55:fb0‎; 2001:638:807:508:8fd3:e0df:f738:d961‎; 192.176.203.237‎; 109.247.36.180‎; 82.132.236.125‎ (2×); Vaedez‎ (3×); 82.13.184.33‎ (7×)]
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			14:08 (cur \| prev) . . (+128)‎ . . Elektrizikekswerk (talk \| contribs)
			13:45 (cur \| prev) . . (-1)‎ . . 82.13.184.33 (talk)
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			13:33 (cur \| prev) . . (+242)‎ . . 109.247.36.180 (talk)
			13:29 (cur \| prev) . . (+31)‎ . . 192.176.203.237 (talk)
			13:28 (cur \| prev) . . (+21)‎ . . 82.132.236.125 (talk) (Indeed, and you ECed my intended minor corrections, I just noticed.)
			13:09 (cur \| prev) . . (+116)‎ . . 82.13.184.33 (talk)
			13:07 (cur \| prev) . . (+1)‎ . . 82.13.184.33 (talk)
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			05:57 (cur \| prev) . . (+132)‎ . . RG (talk \| contribs)
			05:47 (cur \| prev) . . (+172)‎ . . 2001:638:807:508:8fd3:e0df:f738:d961 (talk)
			05:18 (cur \| prev) . . (+145)‎ . . 217.95.141.233 (talk) (comment)
			04:59 (cur \| prev) . . (+153)‎ . . 2003:ef:9715:a200:1cff:609:f55:fb0 (talk) (Other deep hole KTB)
			04:46 (cur \| prev) . . (+240)‎ . . Vaedez (talk \| contribs)
			04:39 (cur \| prev) . . (+257)‎ . . Vaedez (talk \| contribs) (comment + fix anon's markup)
			04:26 (cur \| prev) . . (+136)‎ . . 60.240.65.62 (talk) (Added comment)
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			02:43 (cur \| prev) . . (+198)‎ . . Vaedez (talk \| contribs)
		N	02:30 (cur \| prev) . . (+113)‎ . . TheusafBOT (talk \| contribs) (Created by theusafBOT: talk page for 3266)

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Talk:3264: 720 Ollie‎‎ (2 changes | history) . . (+1,080)‎ . . [82.132.236.125‎; 145.224.74.124‎]

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