Abstract from Karst Groundwater Contamination and Public Health, Abstracts and
Field Trip Guidebook for the Symposium Held January 27 through 30, 2016, San
Juan, Puerto Rico. Karst Waters Institute Special Publication 19, p 49. The
volume as a free PDF is at
On 1/15/2017 10:00 AM, Bill Mixon via Texascavers wrote:
That valley El Picharo is certainly a curious feature. I wonder if it is an old
caldera. Whole region looks virtually uninhabited, which might (or might not)
make it a place for people up to no good to hang out. Surroundings seems to
This message is probably from one of them. There is no personal identifier in
the message.
Evatt
-Original Message-
From: via Texascavers
Sent: Saturday, January 14, 2017 8:54 PM
To: texascavers@texascavers.com
Subject: Re: [Texascavers] Green place in Mexico
Watch out. The
