This deep hole is the western pit of the Double Sinks along the El Caderon Area trail. The trail straddle a saddle between two great lava tube pits of the Double Sinks.
The URL of this page is: http://3dparks.wr.usgs.gov/2006/el_malpais/html2/elma0068.htm
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Menlo Park, CA
Last modified: 7/19/2006