Cuchillo de Picacho is indeed an igneous intrusive that is dated at 28.8 Ma. There is an associated mineralization region surrounding it that has been mined. It's located in the SW part of the Sierra de Tamaulipas that does have known caves as others have pointed out. One of the more famous caves is Poza Zacaton which has had much written about it.
Jerry Atkinson. jerryat...@aol.com -----Original Message----- From: via Texascavers <texascavers@texascavers.com> To: texascavers <texascavers@texascavers.com> Sent: Sat, Jan 14, 2017 8:44 am Subject: [Texascavers] Green place in Mexico While cruising around on Google earth the Weazel noticed an interesting looking mountain range that I think is in Tamaulipas and is east of the main range. The peak (actually a valley) that piqued my interest is called El Picacho and is located at 23.397613, -98.563586 about 45 miles SE of Cuidad Victoria. The entire area is very green and undeveloped. Whoever lives in El Picacho probably doesn't get many visitors. Can any of y'all Texicans tell me anything about this mountain range? What is it called? Is it karst? (doesn't look like that to me) What can explain the strange cirque like valley? Is it certain death to go there? Sleaze _______________________________________________Texascavers mailing list | http://texascavers.comtexascav...@texascavers.com | Archives: http://www.mail-archive.com/texascavers@texascavers.com/http://lists.texascavers.com/listinfo/texascavers
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