Elk River - Monitoring and Landslides

This map displays turbidity monitoring stations and cross sections in the Elk River watershed. Overlaid are geology and landslide data from the California Geological Survey and historical maps from NOAA. The purpose of the map is to show the location of monitoring stations where there is a high risk of landslides or there has been an occurrence of landslides.This map is featured in the 2019 Water Quality Status Report. Data sources: Monitoring stations and cross sections - North Coast Regional Water Quality Control Board Generalized Rock Types - CA Department of Conservation (California Geological Survey) Landslide Susceptibility - CA Department of Conservation (California Geological Survey) Landslide Inventory (Older) - CA Department of Conservation (California Geological Survey) Landslide Inventory (Younger) - CA Department of Conservation (California Geological Survey) Historical maps (1916-1969) - National Oceanic and Atmospheric Administration (NOAA) NHDPlus Flowlines and watershed boundary - U.S. Geological Survey Created by: Lance Le North Coast Regional Water Quality Control Board [e-mail] Maintained by: Michelle Tang Surface Water Ambient Monitoring Program (SWAMP) State Water Resources Control Board [e-mail] Disclaimer & Access Use Constraints: This data may change at any time and should not be used for any purpose other than general reference.