About the distance between Uvalde and Del Rio, west of Del Rio - there's a
concentration of what appear to be volcanic craters.
I was doing a 'satellite geology field trip' of the Del Rio area and noticed
what looks very much like craters and possible calderas.
I hoped that perhaps someone familiar with this part of northern Mexico
might know a little about this area.
Is this an igneous region or it possibly a mix of limestone and extinct
volcanoes?
http://maps.google.com/maps?f=q&hl=en&geocode=&q=&sll=29.609282,-102.531967&sspn=0.269835,0.4422&ie=UTF8&ll=29.382175,-102.513428&spn=0.27044,0.4422&t=h&z=11
Thanks,
WaV
