Map showing features and displacements of the Scenic Drive landslide, La Honda, California, during the period March 31, 2005–November 5, 2006

TL;DRAbstract

The Scenic Drive landslide in La Honda, San Mateo County, California began movement during the El Niño winter of 1997-98. Recurrent motion occurred during the mild El Niño winter of 2004-2005 and again during the winter of 2005-06. This report documents the changing geometry and motion of the Scenic Drive landslide in 2005-2006, and it documents changes and persistent features that we interpret to reflect underlying structural control of the landslide. We have also compared the displacement history to near-real time rainfall history at a continuously recording gauge for the period October 2004-November 2006.

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