Tresviso 2018

Tresviso Caves Project Tresviso 2018 REPORT OF THE CAVING EXPEDITION TO TRESVISO AREA, EASTERN MASSIF OF THE PICOS DE EUROPA, SPAIN September 2018 [email protected] Editor: Phil Walker Table of Contents Tresviso 2018 Table of Contents Table of Contents TABLE OF CONTENTS ............................................................................................................................................................. 3 ABSTRACT ............................................................................................................................................................................. 4 INTRODUCTION ..................................................................................................................................................................... 5 EXPEDITION AIMS ................................................................................................................................................................. 7 T11 - CUEVA DEL NACIMIENTO .............................................................................................................................................. 9 JOE’S CRACK ................................................................................................................................................................................. 9 SATAN’S CHODE .......................................................................................................................................................................... 11 ACTUAL TERROR .......................................................................................................................................................................... 12 THE SILKY CARPET (ABOVE THE DEATH RACE RIFT) ............................................................................................................................ 13 M6 TOLL BYPASS & JURASSIC HIGHWAY ......................................................................................................................................... 15 HERE’S WHAT YOU COULD HAVE WON .......................................................................................................................................... 18 BETTER THAN DIGGING ................................................................................................................................................................. 20 T19 - CUEVA DE LA MARNIOSA .............................................................................................................................................22 SUMP 2 AND BEYOND ................................................................................................................................................................... 22 EXTRA CAVERNS SERIES ................................................................................................................................................................ 23 BOULDER CHOKE 1 (IMMOLATION CHAMBER) .................................................................................................................................. 26 T20A – CUEVA DE LA SILVESTRE ............................................................................................................................................27 T169 TORCA DEL PICU BORU (FLOWERPOT) ..........................................................................................................................35 BEN SERIES – BOULDER BLUFF ...................................................................................................................................................... 35 BEN SERIES – AERIAL ANTICS ........................................................................................................................................................ 36 BEN SERIES – BOTTOM OF THE BARREL ........................................................................................................................................... 36 BILL SERIES – DEFLOWERED CHAMBER ........................................................................................................................................... 37 BILL SERIES – 2018 EXTENSIONS ................................................................................................................................................... 37 SISTEMA CASTILLO ...............................................................................................................................................................39 POZO DEL CASTILLO (T145, CASTILLO I) .......................................................................................................................................... 39 POZO NATACHA .......................................................................................................................................................................... 39 FT16 CONNECTION & BASKET CASE ............................................................................................................................................... 41 OTHER EXPLORATION...........................................................................................................................................................43 T516 - CUEVA DE LA CABEZA DE VACA (COWSHEAD CAVERN) ............................................................................................................ 43 T190 – TORCA SEPTRIN ................................................................................................................................................................ 44 AS3 - SIMA VUC POT ................................................................................................................................................................... 44 NOT WHAT POT .......................................................................................................................................................................... 46 FT12 ......................................................................................................................................................................................... 47 T88 - SUERTE .............................................................................................................................................................................. 50 T89 - GENERAL ........................................................................................................................................................................... 50 T154 - CUESTA ........................................................................................................................................................................... 51 SUMMARY ...........................................................................................................................................................................54 APPENDIX A: EXPEDITION MEMBERS ....................................................................................................................................58 APPENDIX B: PERMISSION & PERMITS ..................................................................................................................................59 APPENDIX C: FINANCE ..........................................................................................................................................................59 APPENDIX D: CAVE LOCATIONS ............................................................................................................................................61 APPENDIX E: SURVEYING ......................................................................................................................................................63 APPENDIX F: SPONSORS .......................................................................................................................................................64 APPENDIX G: EXPEDITION LOG .............................................................................................................................................66 APPENDIX H: CUEVA DE LA MARNIOSA PLAN (2018) .............................................................................................................89 APPENDIX I: CUEVA DEL NACIMIENTO PLAN (2018) ..............................................................................................................90 APPENDIX J: CUEVA DEL NACIMIENTO EXTENDED ELEVATION (2018) ....................................................................................91 Cover Picture: Morning Chamber, Cueva de la Marniosa (Joe Daniels). Page | 3 Tresviso 2018 Abstract Abstract This report provides an account of the 2018 caving expedition to the Tresviso area of the Eastern Massif in the Picos de Europa of Northern Spain. The 2018 expedition was undertaken with collaboration between a number of UK based caving clubs and the Spanish AD KAMI club, under the name of the Tresviso Caves Project. As per previous years the majority of work was concentrated on the resurgence cave of Cueva del Nacimiento, a 13km+ cave system with a height gain of over +535m from the entrance. The catchment of this cave totals 37 km2 and, if linked with known cave systems high in the Eastern Massif, would create a potential 1500m+ deep underground traverse. The main effort in 2018 was to continue work in the furthest reaches of the cave, around the areas known as Death Race 2000, Die Hard and Jurassic World. A series of steep ramps lead to the highest known points in the cave and

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