Ngemuva kweminyaka engama-21 yokuthola ukuvuseleleka kweCoyolatl, etholakala eSierra Negra, eningizimu yesifundazwe sasePuebla, futhi ngemuva kokuyihlola amakhilomitha amaningi, i-GSAB (Belgian Alpine Speleological Group) yaphupha ngokuthola idreyini nokwenza uhambo kulokho indawo. Kwakunjalo-ke.
Ngokuvamile, lapho uvakashela umhume, ungena futhi uphume endaweni efanayo, okungukuthi, bavame ukufinyelela okukodwa kuphela. Kepha kukhona okukhethekile kakhulu, lapho ungangena khona kusuka phezulu kwaziwa ngokuthi yi-drain bese uphuma ngezansi, okubizwa ngokuthi ukuvuseleleka. Le migede yaziwa ngokuthi "travesías".
Ngo-1985 bahlola izimo eziphuthumayo eziningana engxenyeni engezansi yentaba, kodwa eyodwa ikakhulukazi yayinkulu kakhulu, umnyango wawungamamitha angama-80 ukuphakama futhi amanzi akhuphula umfula iCoyolapa, bawubiza ngokuthi yiCoyolatl (amanzi e-coyote). Emasontweni ayisihlanu bahlole ngaphezu kwamakhilomitha ayi-19 wamaphaseji angenhla nomfula, ngaphakathi kwentaba, afinyelela endaweni ephakeme kakhulu ngamamitha + angama-240, ezingxenyeni ezikude kakhulu neziphindayo zomhume. Ukuze bafinyelele kubo, bamisa ikamu elingaphansi komhlaba amakhilomitha ama-5 ukusuka ekungeneni, izinsuku ezine. Lapho kwakukhuphuke khona ezinye izintaba ezinzima kakhulu nezikude kakhulu ngaphakathi komhume, okwenza abahloli bamazwe bacabange ukuthi ukungena kwemihume kufanele kube engxenyeni engenhla yezintaba ukufinyelela lezi zintaba, lapho kwavela iphupho lokuthi uCoyolatl kufanele abe uhambo. Eminyakeni engama-21 yokuhlola bathole imihume eminingi ebalulekile.
Ukungena ngomgede wethemba
Ekupheleni kohambo lwango-2003, iqembu lafika emnyango womhume ngamamitha angama-20 ukuphakama ngama-25 ububanzi, lahamba amamitha ayi-150 ngegalari eyancipha kancane kancane laze laba umhambuma ophela ngokuncane igumbi. Ngokusobala ayiqhubekanga, kepha ifasitela elincane elingamamitha amathathu ukuphakama lashiywa lingabhekiwe ngenxa yokushoda kwesikhathi, elalibizwa ngeLa Cueva de la Esperanza noma i-TZ-57.
Ohambweni luka-2005 bathola imihume emisha eyayicwaningwa kakhulu, kepha ikakhulukazi omunye wabo wawusengqondweni yabo. Ukuhamba ihora usuka enkambini esezingeni eliphansi kungena i-TZ-57, bathathe isibhamu esifushane behla badubula ngamamitha angama-60, bafika ehholo elikhulu futhi phakathi kwamabhulokhi athile umhume nokuhlola kwaqhubeka. Uchungechunge lwama-meanders, ukuwela, ukwehla kwezinga kanye nemithombo ephakathi kwamamitha ayi-10 kuya kwangu-30 okuwa kwaholela emigodini, umoya womoya wabenza baqhubeka nokufaka izintambo emthonjeni ngamunye.
Lapho befika kwesibhamu, baphonsa itshe elathatha imizuzwana embalwa ukufika phansi. "Inamamitha angaphezu kuka-80," kusho omunye. "Bese ukwehlisa!" Kusho omunye.
Ukufakwa kobuchwepheshe kwezintambo kwaqala ukwehla, ngoba inani elikhulu lamatshe nosilika okwakusekhanda lomthombo kwakudingeka kugwenywe. Ngezansi, igalari yavumela ukudutshulwa kokugcina kwamamitha angama-20 okubaholele emthonjeni oyimpumputhe (ngaphandle kokuphuma okusobala). Kwakudingeka ukukhuphuka amamitha angama-20 ukuphuma kulowo mthombo futhi ufinyelele kwelinye igalari ngamamitha angama-25 ububanzi ngamamitha angama-25 ukuphakama. Kwakudingeka uhambo oluningana lokuhlangana nokuhlola kuze kube manje.
Ngakho-ke, ngalowo nyaka kwasala okungaziwa okuningana, njengomthombo wamamitha angama-20 owawungehli neminye imipheme ekhuphuka ngaphakathi kwe-TZ-57.
Enye imfumbe yaxazululwa
Ngo-2006, ama-cavers avela emazweni amathathu ahlangana futhi eSierra Negra ukubuyela ezingxenyeni ezingaziwa ababezishiye ngonyaka odlule. Enye yezimanga ezaheha kakhulu ukudutshulwa okungamamitha angama-20 okwakungazange kwehliswe. Bebaziwa ukuthi bakude ngamamitha angama-20 kuphela ukwenza ukuxhumana okungokomlando phakathi kwemihume emibili. Ababili babahloli bamazwe ababekade behlola iCoyolatl, ngo-1985, babeka intambo, behlela ephaseji elinamanzi ababengawazi kwasekuqaleni futhi bangabaza ukuthi ngabe bayaziwa noma kuphi eCoyolatl. Kuthathe ihora ukuhamba kulegalari entsha baze bathola okugoqwe ushokoledi abashiywe bodwa njengendawo yokuhlola esiteshini eminyakeni engama-21 edlule. Lokhu kusho ukuthi njengoba behlise isibhamu semitha engama-20 bebekwenye yezindawo ezikude kakhulu zeCoyolatl futhi bebengasikhumbuli.
Ezinsukwini ezimbalwa kamuva, ama-cavers ayisishiyagalombili alungisa yonke imishini edingekayo yokuwela umhlaba futhi abe ngabahloli bamazwe bokuqala ukwenza lolu hambo. Bahambe lonke i-TZ-57 futhi kanye eCoyolatl, bamangala lapho bebona imidwebo emikhulu engamamitha angama-40 noma angama-50 ukuphakama nomsinga wamanzi amakhulu omfula.
Kubathathe amahora ayishumi ukuphothula wonke umzila, kusukela ekungeneni kwe-TZ-57, esemamitha ayi-1 000 ngaphezu kogu lolwandle, ukuya ekuphumeni eCoyolatl, esendaweni ephakeme ngamamitha angu-380 ngaphezu kogu lolwandle. Lokhu kusho ukuthi lolu hambo selunamamitha angu-620 wokungalingani namakhilomitha ayi-7 ohambo, okulubeka endaweni yesithathu eMexico. Ngaphansi nje kohlelo lwePurificación, oluthatha indawo yokuqala ngamamitha ayi-820 wokungalingani namakhilomitha ayi-8 ohambo (umehluko ophelele ngamamitha angama-953). Ukuwela kwesibili okujule kakhulu yiTepepa System, enokujula kwamamitha ayi-769 kanye nomzila wamakhilomitha ayi-8 (ukungalingani okuphelele kungamamitha ayi-899).
Kukhona ukunambitheka okumnandi emlonyeni wabo bonke abahloli balolu hambo, ngoba ngemuva kweminyaka eminingi iphupho selifezekile, ngemuva kohambo oluningi nemigede etholwe eSierra Negra, iCoyolatl uhambo! Ukungena ngenhla (i-resumidero) eyiCueva de la Esperanza noma i-TZ-57 futhi isuka ngezansi iye eCoyolatl (ukuvuka kabusha) bekuhlukile.
