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Terrestrial Laser Scanning Data from the Confluence of the South Yuba River and Humbug Creek, Nevada County, California, 2011-2013

Metadata Updated: October 29, 2023

High-resolution, terrestrial laser scanning, also known as ground-based lidar (light detection and ranging), was used to quantify the volume of mercury-contaminated sediment eroded from an outcrop of historical placer-mining debris at the confluence of the South Yuba River and Humbug Creek in the Sierra Nevada mountains, about 17 kilometers northeast of Grass Valley, California. The outcrop could not be mapped non-destructively or in sufficient detail by traditional surveying techniques. Terrestrial laser scanning was used to produce centimeter-scale, three-dimensional maps of the complex outcrop surface at the study site, which was approximately 70 meters long, 30 meters wide and 20 meters high. The outcrop surface was composed of an upper erosional area (cliff area) and a lower depositional area (colluvial slope). The study site was surveyed four times in 2 years (December 15, 2011; October 25, 2012; January 4, 2013; and November 22, 2013). For each survey, the upper erosional area and a lower depositional area were isolated and separated so that volumetric comparisons could be made.

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Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date June 1, 2023
Metadata Updated Date October 29, 2023

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date October 29, 2023
Publisher U.S. Geological Survey
Identifier USGS:5d129ce0e4b0941bde56ecd0
Data Last Modified 20220707
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id 1dd2c803-b294-4e48-8080-c45f9062ea0e
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -120.9332299,39.3381643,-120.9324789,39.3383428
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash a3e57cb1efbd32f3fa84ea0ce86e5ac2490bec50b322773e5c78150f9a92b26d
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -120.9332299, 39.3381643, -120.9332299, 39.3383428, -120.9324789, 39.3383428, -120.9324789, 39.3381643, -120.9332299, 39.3381643}

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