[Texascavers] Jewel Cave

[Gregg Williams via Texascavers]

Jewel Cave is now over 175 miles long and still going, amazing!

http://cavingnews.com/20150221-jewel-cave-surpasses-175-miles-in-length


Seen on http://www.reddit.com/r/caving/
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[Texascavers] Jewel Cave article

[Mixon Bill]

Thanks, Dwight, and especially Lee for the tiny URL that actually works.

But I wouldn't call it a nice article on Jewel Cave. Any article that  
quotes Mike Wiles about geology pretty much automatically isn't. --  
Mixon


Work is the curse of the drinking class.


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[Texascavers] Jewel Cave, South Dakota, still second longest in the world

[Jim Kennedy]

More of Jewel Cave is mapped
May 1 2009 5:15AM
Associated Press
Eds: APNewsNow.

RAPID CITY, S.D. (AP) Explorers have mapped out another 700 feet of
Jewel Cave in the Black Hills to maintain its rank as the world's second
longest cave.

Jewel Cave now has just over 145 miles of explored and mapped
passageways.

The official length of a cave is not the distance between points, but
rather the cumulative distance of all explored and mapped passages.

Mammoth Cave in Kentucky is considered the world's longest cave with 365
miles of explored passages.

Third on the list behind Jewel Cave is a cave in the Ukraine.

Information from: KUSD-FM, http://www.sdpb.org
 (Copyright
2009 by The Associated Press. All Rights Reserved.) APNP 05-01-09
0501CDT | 

Fwd: [Texascavers] Jewel Cave NM Celebrates Centennial

[Charles Goldsmith]

next time we are in South Dakota, need to check this out :)

-- Forwarded message --
From: Mike Flannigan 
List-Post: texascavers@texascavers.com
Date: Feb 13, 2008 6:38 AM
Subject: [Texascavers] Jewel Cave NM Celebrates Centennial
To: MOCAVES , Cavetex 



>From an archaeology mail list:


Jewel Cave NM Celebrates Centennial
   On February 7, 1908, President Theodore Roosevelt signed a proclamation
   that established Jewel Cave NM under the authority of the 1906
   Antiquities Act. The monument was established to protect the small, but
   extraordinarily beautiful cave, which is known for the jewel-like
   calcite crystals that line the cave walls.

   Jewel Cave has the most extensive known collection of different types of
   calcite crystals. The most abundant formations are called dogtooth spar
   and nail-head spar.  Helictites twist and turn as though they were
   formed in a chamber without gravity.  Another formation, called popcorn,
   grows in small knobby clusters.  Veins of calcite deposited in a
   crisscross pattern are called boxwork.  Frostwork, needle-like
   formations of calcite or aragonite, is as delicate as blown glass. Some
   formations are translucent, formed of pure calcite.  Other crystals
   contain additional minerals and appear yellow, red, or opaque white.
   Individual crystals range in size from a grain of rice to a goose egg.

   When Jewel Cave NM was proclaimed in 1908, less than half a mile of cave
   had been discovered.  Currently, Jewel Cave is the second longest cave
   in the world, with a current length of over 141 miles. Exploration
   continues to reveal the hidden miles of passages beneath the Black
   Hills, South Dakota.  Beginning in the 1950s, explorers Herb and Jan
   Conn mapped over 62 miles of cave passages.

   Jewel Cave NM will celebrate its centennial through a series of events,
   programs, and exhibits that will highlight the theme "Generations of
   Discovery.�  The centennial celebration will formally begin on February
   9, 2008, in the visitor center of the monument with a special program to
   commemorate the anniversary. Honored guests and former cave explorers
   Herb and Jan Conn will present a program on their 21 years of
   exploration as they mapped over 60 miles of cave passages, beginning in
   1959.  The caving parties led by this husband-and-wife team made 708
   trips into the cave and logged 6,000 hours of exploring and mapping.  A
   new generation of cavers has continued to push the known boundaries of
   Jewel Cave, but the mystery of its magnitude remains.  As the Conns once
   said, “We are still just standing on the threshold.�  Other special
   guests will join the Conns for this celebration, which will kick off a
   series of monthly programs focusing on a variety of topics related to
   the past, present, and future of Jewel Cave.

   For more information about Jewel Cave go to www.nps.gov/jeca/index.htm
   (From contributions by Eric Peterson on www.howstuffworks.com/)



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[Texascavers] Jewel Cave NM Celebrates Centennial

[Mike Flannigan]

>From an archaeology mail list:


Jewel Cave NM Celebrates Centennial
   On February 7, 1908, President Theodore Roosevelt signed a proclamation
   that established Jewel Cave NM under the authority of the 1906
   Antiquities Act. The monument was established to protect the small, but
   extraordinarily beautiful cave, which is known for the jewel-like
   calcite crystals that line the cave walls.

   Jewel Cave has the most extensive known collection of different types of
   calcite crystals. The most abundant formations are called dogtooth spar
   and nail-head spar.  Helictites twist and turn as though they were
   formed in a chamber without gravity.  Another formation, called popcorn,
   grows in small knobby clusters.  Veins of calcite deposited in a
   crisscross pattern are called boxwork.  Frostwork, needle-like
   formations of calcite or aragonite, is as delicate as blown glass. Some
   formations are translucent, formed of pure calcite.  Other crystals
   contain additional minerals and appear yellow, red, or opaque white.
   Individual crystals range in size from a grain of rice to a goose egg.

   When Jewel Cave NM was proclaimed in 1908, less than half a mile of cave
   had been discovered.  Currently, Jewel Cave is the second longest cave
   in the world, with a current length of over 141 miles. Exploration
   continues to reveal the hidden miles of passages beneath the Black
   Hills, South Dakota.  Beginning in the 1950s, explorers Herb and Jan
   Conn mapped over 62 miles of cave passages.

   Jewel Cave NM will celebrate its centennial through a series of events,
   programs, and exhibits that will highlight the theme "Generations of
   Discovery.�?  The centennial celebration will formally begin on February
   9, 2008, in the visitor center of the monument with a special program to
   commemorate the anniversary. Honored guests and former cave explorers
   Herb and Jan Conn will present a program on their 21 years of
   exploration as they mapped over 60 miles of cave passages, beginning in
   1959.  The caving parties led by this husband-and-wife team made 708
   trips into the cave and logged 6,000 hours of exploring and mapping.  A
   new generation of cavers has continued to push the known boundaries of
   Jewel Cave, but the mystery of its magnitude remains.  As the Conns once
   said, “We are still just standing on the threshold.�?  Other special
   guests will join the Conns for this celebration, which will kick off a
   series of monthly programs focusing on a variety of topics related to
   the past, present, and future of Jewel Cave.

   For more information about Jewel Cave go to www.nps.gov/jeca/index.htm
   (From contributions by Eric Peterson on www.howstuffworks.com/)



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