Carl

Thanks for the note.  I looked at the photo of the well.  It is really
interesting and your stratigraphy work is amazing.

There are two wells here in Denton County, Texas, that are of primary
concern and will be examined thoroughly.  These are probably typical of hand
dug wells of their time period, which is probably circa 1840.  Each is
approx. 1 m diameter, over 50 ft deep, and lined with our ever abundant
sandstone with no mortor added.  One is an open well that still retains
water, the other is dry and has a pipe held in place by sandstone.  Local
history indicates the well with the pipe was dry, or went dry, very soon
after it was dug.  I'm not sure if the pipe was part of the original
construction, or placed in the well some time later by an overly optimistic
newcomer.  I'll have photos of them on our web site in the next few days.

Thanks again.  I'll send a note when I get the photos posted.

Barry