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AMCS
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CONTENTS
5 Mexico News, compiled by Bill Mixon
39 Long and Deep Lists, compiled by Mark Minton
43 Underwater Archaeology at Cenote Holtun, Jason Richards
51 Quintana Roo Caving, 18–30 November 2011, Ray Keeler
58 Expedition Tzontzecuiculi 2012, Gustavo Vela Turcott
64 The Discovery and Descent of Sótano de El Barro, Craig Bittinger and Terry Raines (history)
69 Sierra Negra 2010–2011: From La Cumbre to Ojo de Agua, Omar Hernández
74 Solo Lew in Mexico, Lew Bicking (history)
77 Ixtacxochitla, Puebla, 2008–2011, Ramsés Miranda Gamboa, et al.
89 Mapping Hoyo Negro, Roberto Chávez, Susan Bird, and Alberto Nava
95 Actun Xcoch: A Watering Place for an Ancient City, Eric Weaver
100 John Lloyd Stephens in Actun Xcoch (historical reprint)
103 Casa Carlota Caving in the Sierra Mazateca, Marion Akers
111 Puerto Aventuras Caving, February 2012, Peter Sprouse and Aaron Addison
116 Some Springs and Caves in Northern Mexico, Oliver Knab
38 drawing by Barb MacLeod
57 old newspaper report "City Found in Huge Cavern"
94 book review The Deep Zone, reviewed by Bill Mixon
94 book review Las Cuevas de Yucatán: La Región de Vallodolid, reviewed by Bill Mixon
120 highway signs at Vulcan de los Murciélagos, photos by Gustavo Vela
50,110 cartoons by Jim Kramer