hole with a 3 meter cave entrance.I immediately crawled in as far asthe sunlight went and it obviouslycontinued further. I literally ranback to by bike to get my carbidelamp.Chaining my bicycle to a smalltree in the thickets I rushed backto the newly found cave. There Ifired up my lamp and proceded intothe darkness, now lit by the warm,familiar glow of the acetylene flame.The passage was straight <strong>for</strong>ward andI crawled and walked down it about100 meters when suddenly I was confrontedby a half buried wall builtout of limestone blocks. To theright the passage continued so Ifollowed that trend until it was gettingtight (perhaps 50 meters beyondthe wall). Being alone, I did notwant to push my luck and I returnedto the now mysterious wall.Since walls are usually built<strong>for</strong> a reason, and it was apparentthat I was the first person in the<strong>for</strong> some time, I attempted to getthrough the wall by kicking it down.Un<strong>for</strong>tunately, I was only wearingtennis shoes and with such excavationtools as these I initially madeno headway. Just as I was about togive up this venture, the right sideof the wall fell in. I quickly enlargedthe hole and squirmed my waythrough. The cave continued on inthe direction of the entrance trend.With excitement running high, I decidedto exit the cave to get my Suuntosand my surveying chain (actuallya 10 meter tape only markedevery half meter), <strong>for</strong> here was surelya cave worth mapping.I almost could not find my bicycleand had to return to the roadto get my bearings. Finally I wasback at the cave entrance, surveyequipment in hand. Using my bicycleleg light <strong>for</strong> the point of the surveystation, I crawled back and <strong>for</strong>thsetting stations and sketching thepassage as I went. Since I had neversolo surveyed be<strong>for</strong>e, I did not knowwhat would constitute a good pace,but I thought that I was making goodtime. After surveying the entranceand the right hand lead, I startedthrough the wall. My pace now seemedalmost frantic as I shuffled <strong>for</strong>wardand backward setting stationsand taking readings. About 100 meterspast the wall, following an everdownward trend, I entered a largechamber. This chamber was about 20meters in diameter, and there I immediatelyconfronted a large lake.This lake I christened the "GrandeChen" (chen means "well" in Mayan)-and a Grande Chen it was. It wasnearly as wide as my survey tape andit looked deep. Here was perhapsanother entry into the famous subterraneanlake system of the Yucatan.Skirting the lake and surveyingthe large chamber that I was in, Ibecame even more excited when I discovereda series of pictographs andcarvings on the far right hand wallof this chamber. The excitement ofthese finds were intense and I hadto sit down <strong>for</strong> a few minutes. "IfI had only brought the flash <strong>for</strong> mycamera," kept going through my mind.Spurred on by these discoveries,I continued my survey through a widepassage, perhaps 5 meters in width.For over 200 meters this corridorcontinued in an almost straight line.Finally this major trend pinched butit was apparent that the terminalspot was near the surface. Diggingwith my hands confirmed this notionas the soil began to fall into thepassage from above. Minutes laterI was pulling myself to the surfaceand found myself in the middle ofa henequen field. Overjoyed at theprospect of a truly significantfind I buried the henequen field entranceand trotted back to my bicycle.When I returned to Merida (ina week), I reported my find at themuseum of archeology there.10
Returning to my bicycle, I packedmy carbide and changed into mycycling shorts. With the energy thatcomes from a sense of great excitement,I bowled my wayan to Huna.Uxmal. Actun Treinta ySeis. Actun de Abeja PicaduraAt Muna the flat coastal plaiarises abruptly into the Puuc Hillsand the countryside changes to arolling karst plain that gains altitudeas you proceed further south.This area was a pleasure to cycleas the rolling expaase provides <strong>for</strong>a variety of gear pushing and a changeof scenery. Twenty kilometers laterI was pedaling up a rise and there inthe distance I could see the outlineof the Piramide del Adirino (Pyramidof the Magician), the prominent ruinof Uxmal. Minutes later I was walkingup to the top of this ancientstructure to again experience themysticism of the ancient Mayans.From Uxmal mytravels continuedsouth <strong>for</strong> I was heading <strong>for</strong> the villageof Bolonchen (Mayan: "Bolon =nine and "Chen" = wells) to visitthe famous caves: the Grutas deXtacumbilxunam. Fortunately thisroad not only took me to Bolonchen,but also by several interesting caves.My cave count had by now reached35 when I chanced to see what lookedlike several interesting cave entrancesin a round hill only half a kilometermvay. Again hiding and chainingmy bike off the road, I put mycarbide lamp, my bikelight, and surveygear into my pack and startedoff through the jungle, chopping myway through with my machete. Halfau hour later, I found myself confrontedby no less than three caveentrances.Since this was my 36th cave ofthe trip, I dubbed this cave systemActtin Treinta y Seis. When I enteredI was surprised to find thatall three entrances led into onelarge, low ceilinged room. Thischamber was fully 100 meters wide.Situated between two of the entrancesin this large room was a short column(seemingly holding up the ceiling).Piramide del Adirino at Uxmal.(Edward Ranney, Stonework of the Maya)11
- Page 3 and 4: Number 10AMesActivitiesNewsletterJu
- Page 6 and 7: compilcJ Ly Peter S. SprouseAUSTRIA
- Page 8 and 9: Long Caves of MexicoPeter S. Sprous
- Page 10 and 11: ,/
- Page 14 and 15: Interestingly enough, the majorpass
- Page 16 and 17: proceeded to find 78 ticks on mybod
- Page 19 and 20: The Sierra de Guatemala mountain ra
- Page 21 and 22: meter long, 9 meter deep, slopingdr
- Page 25 and 26: Diving the big springs of the Sierr
- Page 27 and 28: Aerial view of Nacimiento del R10 M
- Page 29 and 30: Nacimiento del Rio CoyOn Monday, 26
- Page 31 and 32: Entrance chamber, Nacimiento del Rl
- Page 33: We discovered a source of compresse
- Page 36 and 37: Steve Zeman rappels into the SalaGr
- Page 38 and 39: no problem and we were soon fourwhe
- Page 40 and 41: event that the dive panned out andw
- Page 42 and 43: keep an accurate fix on whether itw
- Page 44 and 45: we had finished the last of the rop
- Page 46 and 47: tance. This continued for some 280m
- Page 48 and 49: Talus summit at the beginning of An
- Page 50 and 51: source, a kilometer and a half upst
- Page 52 and 53: consisted of a dusty dry corridorbo
- Page 54 and 55: There was much speculation aboutthe
- Page 56 and 57: turning to Camp II we found Richard
- Page 58 and 59: We had barely slept three hourswhen
- Page 60 and 61: POSTEXPEDITION NOTESBill Steele and
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-f//'~:;San,Agustin,,~~~:= ']--="~-
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translated from the Mazatecby Cathy
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Ateschalla Norte ySurThe following
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CUEVA DE TASALOLPANcuetzalan, puebl
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CuetzalanSteve KnutsonSpring 1979Ma
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Thirty meter pitch into canal secti
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ENTRADACANONACUEVATECOLOESTADA DE P
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S6tano del BuqueRobert JefferysSota
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the rope. What John had been trying
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METERSo50NmICEBERG ROOM100-506500
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CUEVA DE XOCOTLATintroduction by Ge
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was a sizable horizontal sectionwhi
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Cueva de XocotlatMunicipio de San P
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1979 SPRINGDale PatePROJECTPlans we
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were the only ones left at the fiel
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to 4 hours exploring and sketchingv
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persons working on this mapping tea
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Fifteen meter drop in Moria.(Thomas
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French delegationarrivesAfter sever
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French ConnectionFriday the 13th sa
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everyone prepared for the hike toCa
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Terri t Dale t and Steve returned t
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SISTEMAPURIFICACIONMunicipio Villa
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Letters to the EditorTothe Editor:B
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ATLAS DES GRANDES GOUFFRES DU MONDE