asscciation for mexican cave studies box 7672 ut station austin ...
asscciation for mexican cave studies box 7672 ut station austin ... asscciation for mexican cave studies box 7672 ut station austin ...
4SAN CRISTOBAL, CHIAPAS: DEC. 29, 1974, Brian Larson (Calgary, Alberta), JohnDonovan (Blackpool, Lancashire), Blake Harrison (Austin, Texas), Mike Boon(Calgary, Alberta)The group took burros from Tenejapa about six miles to Sumidero Yochib.They went downstream in this large river cave for five hundred meters. Hereexploration was stopped two years before by large breakdown blocks that channelthe flow of the river (132 cubic feet/sec) into impassable rapids. Thegroup managed to pass the breakdown by crossing the river and bolting acrossa deep gut between the blocks thirty meters further downstream. There explorationwas stopped at a rapids where the river--a meter deep and ten meterswide--went swiftly down a slight grade. They decided the only way to attemptthe rapids was with a rope and jumars. Returning to a point nearer the entrance,they explored a fifteen by fifteen meter side passage about six hundredmeters to a depth of about 210 meters. They thought this passage wouldbypass the rapids and return to the river, but it ended in a mud choke.From Tenajapa they went to Huixtan near San Cristobal to climb a waterfallabout three hundred meters back in the resurgence of one of the headwatersof the Rio Huixtan. They climbed the ten meter waterfall and found120 meters of passage'
5MINA OTATES, T&~.: DSC. 25, 1974, Andy Grubbs, Robert Hemperly, LoganMcNatt, Bill Russell, Nancy Sayther, Terry Sayther, Barbara Wolf.This group arrived in Cd. Valles after LWO days checking cave leads nearPapagayos, east of Cd. Maiz. They found the map of the Otates Mine area inthe Condesa, checked in at Los Sabinos, and drove to the mine. There it wasdecided to chop a trail south from the mine road on compass bearings fromNeal Morris's map. To connect themine area with the trail north fromCueva de Tanchipa required threeand a half days of chopping. Assistedby Tom Rams~y and JoeSotano de SenderoMaskasky, the group cleared atrail through the karst for fivekilometers south t.o Sotano de laCuesta at the end of the Tanchipatrail. The new trail went by severalpits, including a one hundred377 ft.foot (unchecked), Sotano de Sendero(712 feet), Sotano de Arbol (177'to a room with a four second drop),and several smaller pits. Thechopping went rapidly as we had alarge group and the lead chopperscut only enough to get through andstay on bearing, while the peoplefollowing enlarged the trail. Justnorth of the mine road a cave in the 712 ft.bottom of a large sink was exploredand named Cueva de Diamante (Diamond)after the quartz crystals found inthe sink. The first part of the caveis an old phreatic tube five feet indiameter that now takes drainage fromthe sink. Almost blocked by flow-"stone in places, the cave was climbableto about the 150' level. Thenwe returned to Los Sabinos and enlarged(with ten sticks of Kinopak)a passage that bypassed the AcupunctureCrawl in Cueva de Tinaja.Bill Russell730 ft.NEWS NOTE: Aquismon, S.L.P.; Word is that a road is to be built to Tamapatz,a one and one-half hour (level) walk from Sotano de las Golondrinas. Theroad will start at Pimienta on the highway south of Aquismon, and follow thetrail to Tampachal (one-half hour from Guaguas), then north to Tamapatz. Willa road to Tamapatz increase Golondrinas traffic? Will cavers still have toask permission in Aquismon? Hhat ever happens, things should be different.Construction is scheduled to start soon and should take about a year.
- Page 1: ASSCCIATION FOR MEXICAN CAVE STUDIE
- Page 5: 3So the large-entranced sotano whic
- 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 and 18: 5To the right of the partition in t
- Page 19 and 20: 7Diamond Cave RevisitedAndy Grubbs,
- 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
4SAN CRISTOBAL, CHIAPAS: DEC. 29, 1974, Brian Larson (Calgary, Alberta), JohnDonovan (Blackpool, Lancashire), Blake Harrison (Austin, Texas), Mike Boon(Calgary, Alberta)The group took burros from Tenejapa abo<strong>ut</strong> six miles to Sumidero Yochib.They went downstream in this large river <strong>cave</strong> <strong>for</strong> five hundred meters. Hereexploration was stopped two years be<strong>for</strong>e by large breakdown blocks that channelthe flow of the river (132 cubic feet/sec) into impassable rapids. Thegroup managed to pass the breakdown by crossing the river and bolting acrossa deep g<strong>ut</strong> between the blocks thirty meters further downstream. There explorationwas stopped at a rapids where the river--a meter deep and ten meterswide--went swiftly down a slight grade. They decided the only way to attemptthe rapids was with a rope and jumars. Returning to a point nearer the entrance,they explored a fifteen by fifteen meter side passage abo<strong>ut</strong> six hundredmeters to a depth of abo<strong>ut</strong> 210 meters. They thought this passage wouldbypass the rapids and return to the river, b<strong>ut</strong> it ended in a mud choke.From Tenajapa they went to Huixtan near San Cristobal to climb a waterfallabo<strong>ut</strong> three hundred meters back in the resurgence of one of the headwatersof the Rio Huixtan. They climbed the ten meter waterfall and found120 meters of passage'
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