27HUA~~ AREA SURVEY: Following the successful overland surveys of theOtate Mine, the San Juan plateau, and the Silvertip Cirque in '1ontana,many ~1CS <strong>cave</strong>rs have taken note of the usefulness of this type ofspeleological tool. Not only does a c~p<strong>ut</strong>er generated plot show whichpassages are likely to connect in an extensive system, b<strong>ut</strong> they alsogive us keener insight to the spepeogenesis of the <strong>cave</strong>s in a particularkarst area. The <strong>for</strong>mer was used to great advantage at Silvertip lastsummer •••knowing that that raunchy crawlway will connect gives muchgreater enthusiasm to the push crew.Besides the obvious advantages in the field, such a survey is apowerful graphic media <strong>for</strong> the final bulletin. TI.e reader immediatelyunderstands what is going on ~n the area -- which are the major systems,where they are located, and perhaps some insight into the full potentialof the system. .With the ultimate goal of a comprehensive bulietin on the Hua<strong>ut</strong>la,Oaxaca, karst region, we began the overland survey in January. Jim Smith,Jill Dorman, and I connected Rio Iglesia, Cueva San .\gustin, and Sotanode San Agustin with our ~atum point at Sr. Villega's house. Later, in.~~rch, Bill Steele and Jean Jancewicz surveyed to La Grieta (Sotano delCerro de Plaza). These segmer.ts were then connected with the main <strong>cave</strong>surveys. Downstream San Agustin 'vas surveyed by the cast of thousands(R. Schreiber, M. Smith, J. Smith, M. Stock, T. Davis, S. Kn<strong>ut</strong>son,D. Broussard, F. Binney, B. Stone, R. Jameson, G. Moni, W. Heller, w.Steele, J. Jancewicz, S. Zeman, D. Lowry, J. Lieberz) from December,1976, to April, 1977, during three separate expeditions. La Grieta wassurveyed Dec 1976-Jan 1977 by R. Jameson, P. Mothes, J. Smith, A. Cochrane,F. Binney, J. Horowitz, and B. Stone.. All other data <strong>for</strong> the plot (i.e., the long straight segments) wasreduced from published maps <strong>for</strong> which we are awaiting the original notes.Three notable observations can be made from the maps: La Grieta,thought to be a sure connection to San Agustin in January appears to bein a parallel drainage system, independent of the San Agustin system.Cueva San Agustin is ~ery close to Rio Iglesia in two places. The downstreamend of Rio Iglesia lines up almost exactly with the "upstream"dry trunk of lower San Agustin. A connection between Cueva San Agustin andRio Iglesia would make that system 662 meters deep and almost 4km long.A double connection to San Agustin would make "La Sistema de San Agustin"992 meters deep (5th in the world) and the longest <strong>cave</strong> in Mexico --over 10 km. On the other hand, tf La Grieta goes as deep as San Agustinand the higher sinkholes on the San Andres P~dge or on Cerro de Plazacan be connected, the "Sistema del Cerro de Plaza" would be approaching-1200 meters!gill Stone~-1e have just received a copy of the original survey notc:s <strong>for</strong> ~otanode San Agustin fron John Fish. A new more accurate nap of the IIua<strong>ut</strong>laArea should soon be available.
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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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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
- Page 102 and 103: 3View across the botto~ of Hoya de
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- Page 111 and 112: \I0YA DE LA LUZProfile B-B'Located
- Page 113 and 114: 12hotic DiseasesThe August 1976 iss
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- Page 119 and 120: RETURN TO HUAUTLA~Jith t~e 1976-77
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- Page 129 and 130: TRIP REPORTSDestination: Cueva del
- Page 131 and 132: 5uestination: Sierra las Alazanas a
- Page 133 and 134: The Fissure t..as located by T.P.
- Page 135 and 136: 11The next morning Francisco "Kissi
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- Page 143 and 144: 1'1later Jim and I began the long c
- Page 145 and 146: 20Our group of six intended on rapp
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- Page 149 and 150: 24and myself about trash and abando
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- Page 155 and 156: 30Medical Report On The April 1977
- Page 157 and 158: '32One caver alInost lost her voice
- Page 159 and 160: 34considered normal. The diabetic d
- Page 161 and 162: 36Jim Smit~ Has followinp, Blake Ha
- Page 163: 3~the spot would make a smaU slip.
- Page 166: AMCSACTIVITIeSNewsLe TTe Rno. 7
- Page 169 and 170: 'International NewsTHE SIERRA DE GU
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- Page 180 and 181: stove in a semi-catatonic state. He
- Page 182 and 183: above the roaring cascades. At time
- Page 184 and 185: With two leads 'beckoning we began
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- Page 194: La Sistema Purificacidn: a theory a
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CUEVADELAPENAPROFI LEmetersoRanc ho