asscciation for mexican cave studies box 7672 ut station austin ...

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6o100Frog Falls70 ft200Mark Minton'sgroup wentthis way todrop50ft.30075 ft.400DepthCrystal inRoom feet 500Dome600CUEVA DEDIAMANTETamaulipas, Mexico40 ft.700Profile100rope800Sketch from MemoryHandburgerHill9001000
7Diamond Cave RevisitedAndy Grubbs, Steve Deathrige, Paul Fambro, Jim Feely, and Mike McKeearrived at ~tina Otate on tmrch 23. Also in the group were Terry Sayther,John Omnaas, Craig Smith, Mike McEachern, Nancy Boice, and Dennis Breiningwho planned to work on the trail to Cuesta, while the others made a reconnaissancetrip into Diamante. They were equipped with many short ropes forthe small drops, as on the Christmas trip the only ropes available were longropes for the big pits that no one wanted to drag through the cave. ~ext morningthe reconnaissance group climbed through the first part of the cave andstarted rigging at a series of flowstone cascades, named Frog Falls after thenumerous frogs. At the bottom of Frog Falls, minus 131 feet by the Minton survey,a series of drops leads to an offset into the Crystal Room, 75 by 50 by75 feet high - the walls covered by 6 by 6 inch calcite crystals, attractivethough dry and dusty. This room also contains what looks like a crystal-coveredTitan Missile, either a now mostly dissolved wall or an old stalagmite.Just before the Crystal Room a small hole leads to the passage followed bymost of the water entering the cave, diverted away from the Crystal Room bya partition. This is the passage followed by Minton's group on the Christmastrip. On this trip it was decided to check a narrow crack leading down fromone side of the Crystal Room. This fissure was chimneyed for 50 feet to asloping passage that was followed to a handline drop, where Andy climbed downto the top of another drop. On the way back to the Crystal Room, Mike McKee fell15 feet when a handhold broke, but suffered no serious injury.The next day the group, now consisting of Andy, Steve, Dennis, and Craigreturned and rigged several more drops to a squeeze leading through the PebbleRoom to the top of a 130 foot fissure divided by a thin partition halfway down.This section was named Handburger Hill due to the sharp nature of the rocks.Andy climbed to the bottom of the fissure, but ended up on the wrong side ofthe partition. He could see the crack continuing, but from where he was, thecontinuation was not easily reached, and time was running short, so he climbedback out. The total depth of Diamante is estimated to be almost 1000 feet, stillcontinuing, and several hundred feet short of the potential of the cave, locatedon the crest of the Sierra de El Abra.Just before they left the Otate ~line area they checked a pit the minershad told them about between the Diamante Cave entrance and the Camp, about tenminutes from the car. They reached the pit and dropped a rock. Three secondsfree fall and then it bounced out of hearing. But alas they had to meet a groupin Taxco to tour the underground course of the Rio Chontalcoatlan, the warmestof the two Dos Bocas that emerge below Cacahuamilpa.Notes from Tom Ramsey:1. Second drop in Otate is not blind; there is a methane sump lead down there.We never did get anyone in our party on the bottom.2. You said that when we came hack from Mina Otate that we were happy but ~.I take offense at that cliche word: tired. We Cru~pers and Hlocut cultists nevertire!3. George Tracy's group spent Xmas in the Chiapas. They never did manage to catchup with Mike Boon, but they did get some caving in.
Page 1: ASSCCIATION FOR MEXICAN CAVE STUDIE
Page 5 and 6: 3So the large-entranced sotano whic
Page 7 and 8: 5MINA OTATES, T&~.: DSC. 25, 1974,
Page 9: MERIDA, YUC.: OCT. 1974, David McKe
Page 13 and 14: AMCSMEMBERSHIP ACTIVITIES LETTEREdi
Page 15 and 16: 3Michael Schulte has been working o
Page 17: 5To the right of the partition in t
Page 21 and 22: 9CHE~-VEN-SIL-MUTSYSTEM\+--1000 ft.
Page 23 and 24: Cave Map Symbols11On the following
Page 25 and 26: 13I NATIONAL SPELEOLOGICAL ISOCIETY
Page 27 and 28: ASSOCIATION FOR MEXIC&~ CAVE STUDIE
Page 29 and 30: 17Discussion of Map Symbolsby Bill
Page 31: 19in a 90 meter pit could collect d
Page 35 and 36: AMCSACTIVITIES LETTEREdited by Bill
Page 37 and 38: 3After leaving Valladolid we went t
Page 39 and 40: CASI UlL 5By Bill Stone as told to
Page 41 and 42: June 97Dear AMCSRE:Diamond CaveAfte
Page 43 and 44: Anyways we speleo-boppedEstrella an
Page 45 and 46: The adrenelin still pumping through
Page 47 and 48: 13Sotano Hondo de Pina1itoBy Steven
Page 49 and 50: CAVE MAP SYMBOLS(continued)15The AM
Page 51 and 52: mechanical shading -- the dots, con
Page 53 and 54: morphogenetic feature involving gra
Page 55 and 56: height variation, say. across the w
Page 57 and 58: 23that list to include a broader se
Page 59 and 60: 25be represented by rigidly p,eomet
Page 61 and 62: 27..• D. 0. ȯGravelFEATURENOTESS
Page 63: ASSOCIATION FOR MEXICAN CAVEUAP Snm
Page 67 and 68: AlfCSACTIVITIES LETTEREdited by Bil
Page 69 and 70:
35. I personally had the following
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volunteered to rescue the bag. They
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one large black hole near the top o
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The next day we left camp at dawn a
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11First Exploration of NogalThursda
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'"entire passage has·solutional ro
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13Date: January, 1975Destination: A
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15Trip Report, Christmas-New Years
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THEOTATES MINE AREA17SIERRA DE EL A
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large storms, this arroyo sends flo
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20but the handholds are unstable re
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22Diamante received its name from t
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jer_I') CIRCLE ROOW•LA CUEVA DE J
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elev 1310mmeters 0Hoya de las Conch
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AMCS ACTIVITIES LETTEREdited by Bil
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3View across the botto~ of Hoya de
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dubbed "The 170" quickly led to ano
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Roy dropped 3 pits an'i :l cave nea
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which would have been hazardous hol
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\I0YA DE LA LUZProfile B-B'Located
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12hotic DiseasesThe August 1976 iss
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14San Juan Area Nov 1976"eo?le: Tr~
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16Caving in Puebla, Vera Cruz, and
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RETURN TO HUAUTLA~Jith t~e 1976-77
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20SCHOOL BUS SCOOPSZOaUITLAN AREA~)
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enU~«
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2April 1, 1977, marks the 10th anni
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TRIP REPORTSDestination: Cueva del
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5uestination: Sierra las Alazanas a
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The Fissure t..as located by T.P.
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11The next morning Francisco "Kissi
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12could scamper up a wed~ed log and
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14This idea was thwarted given an u
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16NEW YEAR'S DAY IN SAN AGUSTINan t
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1'1later Jim and I began the long c
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20Our group of six intended on rapp
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22here and poked around for leads.
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24and myself about trash and abando
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line didn't cross; nylon against ny
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...'"1IIc.21II .._1II~(,),-• c..'
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30Medical Report On The April 1977
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'32One caver alInost lost her voice
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34considered normal. The diabetic d
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36Jim Smit~ Has followinp, Blake Ha
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3~the spot would make a smaU slip.
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AMCSACTIVITIeSNewsLe TTe Rno. 7
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'International NewsTHE SIERRA DE GU
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International Newsin the entrance a
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The Ten Deepest Caves in Mexicoby B
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to a drop. t returned and dropped a
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to the entrance. From San Andres we
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stove in a semi-catatonic state. He
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above the roaring cascades. At time
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With two leads 'beckoning we began
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Chaining a passage in Cueva de Infi
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the cave. We pulled our rope down b
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increased the cave's depth to -197
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series of parallel ascending (+30 0
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La Sistema Purificacidn: a theory a
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Between the Cold and the" GlorybyTe
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Back tothe Bird PitsbyBill StoneSum
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'Getting Down in Peiiaby Bill Stone
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CUEVADELAPENAPROFI LEmetersoRanc ho
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