Landscape Change Associated with the Upper Scenic Drive Landslide, La Honda, California, January 10–June 28, 2017

Open-File Report 2019-1024
By: , and 

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Abstract

La Honda, California, is a small town in unincorporated San Mateo County, located on the west edge of the San Francisco Peninsula in the Santa Cruz Mountains, between San Francisco and San Jose. The Scenic Drive area of La Honda has experienced several past episodes of landslide motion, which were documented in 1998, 2005, and 2006. This report documents the movement of the upper Scenic Drive landslide that occurred between January 10 and June 28, 2017. Our mapping provides a snapshot of the 2017 upper Scenic Drive landslide, as imaged from high-resolution terrestrial laser scanner (TLS) survey data (also referred to as terrestrial lidar) that we collected January 27–28, 2017; we mapped the landforms associated with the 2017 upper Scenic Drive landslide motion using a bare-earth TLS shaded-relief base map, in addition to field observations. Our mapping is supplemented by photographs of the mapped landforms, which were taken between January 11 and 31, 2017; these photographs illustrate the development of selected landslide features. The purpose of this report is to make available the maps constructed from three-dimensional TLS data and the photographs that show the landslide morphology of the 2017 upper Scenic Drive landslide. The scope of this report is limited to the motion of the upper Scenic Drive landslide that occurred between January 10 and June 28, 2017.

Suggested Citation

Pickering, A.J., Prentice, C.S., and DeLong, S.B., 2019, Landscape change associated with the upper Scenic Drive landslide, La Honda, California, January 10–June 28, 2017: U.S. Geological Survey Open-File Report 2019–1024, 17 p., 1 sheet, scale 1:400, https://doi.org/10.3133/ofr20191024.

ISSN: 2331-1258 (online)

Study Area

Table of Contents

  • Introduction
  • Geology of the Landslide Area
  • Methods
  • Observations
  • Rainfall and Landslide Activity
  • Limitations and Uncertainties
  • Acknowledgments
  • References Cited

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Landscape change associated with the upper Scenic Drive landslide, La Honda, California, January 10–June 28, 2017
Series title Open-File Report
Series number 2019-1024
DOI 10.3133/ofr20191024
Year Published 2019
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Earthquake Science Center
Description Pamphlet: iv, 17 p.; one 32" x 20" Sheet; Metadata; Database
Country United States
State California
City La Honda
Online Only (Y/N) Y
Additional Online Files (Y/N) Y