Mike Gross said:
The crossing at Boquillas had been unstaffed on either side at least since the
early 1970's.
The same was true at Lajitas, where one could drive across the Río Grande
at low water. Nancy Weaver and I did that one time in the midst of a group of
kayakers coming down the river. A similar situation was true for the La Linda
bridge, which surprisingly had a Mexican customs station but not one on the U.
S. side. None of these great crossings are open anymore. See my Carbide
Corner piece in Texas Caver Vol. 53, no. 3 (2007) for an exciting crossing
after La Linda had closed.
Mark Minton