15An excerpt fro:!! a letter from !Jark Stock to Bill ~Iixon.the Windy City Speleonews, Vol~me 17, ~p'ril 1977.neprinted fromLast December I went to Sotano de San Agustin with Richard Schreiber,Jim Smith, Steve Kn<strong>ut</strong>son, Don Broussard, E.T. Davis, and Phil O'dell. Thefirst day we rigged down to abo<strong>ut</strong> the -1250 foot level. The next day we gotto Schreiber's lead (he had been there ~lith so~e Canadians several yearsearlier) at the -1850 foot level. t~ile Jim and Richard were looking atRichard's lead, I found an obvious ro<strong>ut</strong>e through the breakdotYn, which wentto a passage going downstream. I worked my way back to the others, whothen started on the ro<strong>ut</strong>e I had found. We only got abo<strong>ut</strong> 500 feet furtherbecause we ran o<strong>ut</strong> of rope after two drops.We had a day of rest, then E.T., Jim, Steve, Richard, and I tookseveral more ropes down to continue. Since we had nore than enough people<strong>for</strong> a mapping crew it was decided to have a two-person push crew. Steveand E.T. volunteered to be surveyors, while the three obnoxious bastards(Richard, Jim, and I) were <strong>for</strong>ced to flip coins to see which of us wouldbe stuck surveying. I lost. After a couple of hours of surveying (thepassage was narrow and sinuous), we heard Jim and Richard. They cameback reporting having found a huge lake which was a terminal siphon.Richard took my place on the survey crew so I could snoop o<strong>ut</strong> the lake.Jim carried the extra ropes back to Richard's old lead. I followed thepassage down to the lake and swam across it. It's kind of wierd swimmingacross a large underground lake when you're solo. vfuen I got to theother side (only abo<strong>ut</strong> 100 feet, actually), I started poking around inthe breakdown. Afte~_~bo<strong>ut</strong> 45 frustrating min<strong>ut</strong>es worth of dead ends,I found a way through. I got into a 15 foot wide, 40 foot high passagewith four times the amount of water that we had seen in the stream atany other point in the <strong>cave</strong>. I prorressed downstream, lowering myselfon the lips of pot holes. I reached a point, abo<strong>ut</strong> 20 vertical feetbelow the lake, N'here I wasn't sure I could make it back. That is whereI wimped o<strong>ut</strong>. The field calculated elevation of the surface of the lakewas -2150 feet.After a day's rest, we ~erigged the <strong>cave</strong>. Richard wanted to leaveHua<strong>ut</strong>la a bit early because he wasn't sure that he could get his vano<strong>ut</strong> on ~~e horrible roads. When we arrived back at the surface, we foundthat a group of Texans had arrived.Our group, except Jim Smith, left the next day. Bill Stone drove hismonstrous truck back with the van to help pull Richard o<strong>ut</strong> of mud holes.His help was both necessary and appreciated.After we left, Jim, Bill Stone, Frank Binney, and Roy Jameson reriggedSan Agustin and pushed the ro<strong>ut</strong>e I had found. They reported hugeborehole passage with much water. At the end of what they found, therewas a fissure taking three times as much water as I had seen. At thispoint they wimped o<strong>ut</strong> (at least I don't think that they were o<strong>ut</strong> ofrope). They claim that,the surveyed depth of San Agustin is now over2500 feet, b<strong>ut</strong> then that may have to be rounded downward knowing theTexas exaggeration factor. The <strong>cave</strong> was definitely continuing at thatpoint, b<strong>ut</strong> drier weather would make things more pleasant. There is a verygood chance of connecting in hi~her entrances, perhaps as nuch as 1001feet higher. Supposedly, the <strong>cave</strong> can go 1500 feet deeper as well. ~~ybe~orth America will finally have something to natch Europe 'Hark Stock
16NEW YEAR'S DAY IN SAN AGUSTINan the afternoon of December 27. Shela and Tracy Johnson and GaryStiles arrived from Acatlan. Activity was shifted from the fissure toSan Agustin and many discussions were held concerning the various aspectsof the base camp and the assault plan. After a days rest and rope sortingGary, Jim. and I ri~~ed down 15 pitches to Camp II at -530 meters. Theround trip took only 7 hours and was especially delightful to Gary and Iwho hadn't be<strong>for</strong>e seen those magnificent waterfall pitches in the fissurepassa~e.The next day was a rest day and menus <strong>for</strong> the push crew were planned<strong>for</strong> the main assault. By 3:~O P.~~. December 30 all was ready. Laden withmonstrous duffle bags of equipment. rope, and food, our supply train~escended. Frank, Roy. Jim, and I comprised the push crew, while Alex.Jeff, Patty, and Garv the support team. l~at had been a delight tonegotiate on the ripp.in?- trip became an obstacle course with our bulkygear sacks. ~st of us rappelled with the duffle slun~ off a two meterteather attached to the rack. Even so the unbalance was annoying. especiallyon the tyroleans. Land ho! We soon arrived at Camp II -- a 6 by12 meter spacious flat sand bank elevated several meters above the cobblefloor. The passage was perhaps 15 neters wide and 20 high. ~earby theroaring water from the fissure dropped through the floor into the canalleading to the 2009' level. After some hot tang. the support crew bidadieu and head o<strong>ut</strong>. Ue would not see them again <strong>for</strong> 3 days. if all wentaccording to plan, at which time they would bring an additional 2 day'sfood and more rope. ~~e then set abo<strong>ut</strong> the task of housekeeping at -530meters. Rome sweet hole! Since we had been up <strong>for</strong> a considerable time wedecided to take a sleep shift and beein work the next day (night?). Noone had a wat~~ so this was bound to be an interesting experiment. Therewas little to do around our cook rock except eat and sip an occasionalcapful of N~w Year's cheer (Aguardiente), so when that was done, wecrashed.I awoke first to the persistant roar of the waterfall and the greenglow of the cool-lite marking the bog (our o<strong>ut</strong>house). ~iscretely firingup a carbide lamp, since I really had no idea if I'd slept 5 hours or15 hours, I commenced work on my ratty Nam boots with a knife and a sewingaWl. Oh, yes. another thin~ we learned•••even the fine citizens ofSan Agustin will appropriate the shirt off your back -- while you're stillin it! After many warnin~s from Epifonio (our landlord) to lock thingsup. we still hadn't learned. As a result. my new pair of Nam boots disappearedfrom the doo~~ay they were dryin~ in, the day be<strong>for</strong>e the push.All t had left were soles and uppers (not really in one piece) of myveteran ~!ontana boots. Two hours later they were almost serviceable.After breakfast we crawled into our slimy. cold wetsuits ~d manyexpletives and bounced dm~ the passage witb all the rope we could carry.In short order, we had rigged to the 2125 level and swam across the lake.Not really knof,Jing where i1ark had gone. we split up. Jim. and Frank wentthrough the dry breakdown w~ile Roy and I swam several canals and arrivedat the sa~e place. A powerful waterfall was audible in the distance. Thishad to be it. Thirty neters of raunchy breakdown ~rawlinf' and we arrivedat the gorRe. I cannot use enough superlatives to describe this magnificentpassage. Fifteen cusecs of water thundering down a six meter widethirty meter high passafe. The ~ulticolored walls were perfectly smooth,polished like la~ specinens. The pools were aquamarine blue and crystalclear. m1erever a handhold or tie off was needed there was always asculptured sol<strong>ut</strong>ion hol~. Bea<strong>ut</strong>iful cascades and sporting free climbs addedto the exciteoent. 0n one pitch. the grand cascade. the water arched o<strong>ut</strong>5-6 meters into a 15 ~eter void. An excitinq tyrolean alon~ the side of
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ASSCCIATION FOR MEXICAN CAVE STUDIE
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3So the large-entranced sotano whic
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5MINA OTATES, T&~.: DSC. 25, 1974,
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MERIDA, YUC.: OCT. 1974, David McKe
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AMCSMEMBERSHIP ACTIVITIES LETTEREdi
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3Michael Schulte has been working o
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5To the right of the partition in t
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7Diamond Cave RevisitedAndy Grubbs,
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9CHE~-VEN-SIL-MUTSYSTEM\+--1000 ft.
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Cave Map Symbols11On the following
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13I NATIONAL SPELEOLOGICAL ISOCIETY
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ASSOCIATION FOR MEXIC&~ CAVE STUDIE
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17Discussion of Map Symbolsby Bill
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19in a 90 meter pit could collect d
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AMCSACTIVITIES LETTEREdited by Bill
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3After leaving Valladolid we went t
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CASI UlL 5By Bill Stone as told to
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June 97Dear AMCSRE:Diamond CaveAfte
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Anyways we speleo-boppedEstrella an
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The adrenelin still pumping through
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13Sotano Hondo de Pina1itoBy Steven
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CAVE MAP SYMBOLS(continued)15The AM
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mechanical shading -- the dots, con
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morphogenetic feature involving gra
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height variation, say. across the w
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23that list to include a broader se
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25be represented by rigidly p,eomet
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27..• D. 0. ȯGravelFEATURENOTESS
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ASSOCIATION FOR MEXICAN CAVEUAP Snm
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AlfCSACTIVITIES LETTEREdited by Bil
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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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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