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1992 digital surface model and orthomosaic of Malakoff Diggins State Historic Park, California

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Bailey, T.L., and Curtis, J.A, 2017, 1992 digital surface model and orthomosaic of Malakoff Diggins State Historic Park, California: U.S. Geological Survey data release, https://doi.org/10.5066/F7T152J9.

Summary

One of the largest hydraulic mines (1.6 km2) is located in California’s Sierra Nevada within the Humbug Creek watershed and Malakoff Diggins State Historic Park (MDSHP). MDSHP’s denuded and dissected landscape is composed of weathered Eocene auriferous sediments susceptible to chronic rill and gully erosion whereas block failures and debris flows occur in more cohesive terrain. This data release includes a 1992 digital surface model (DSM), 1992 orthophoto mosaic, masked orthophoto of the study area, 1992 ground cover classification, and 1992 pruned DSM with the vegetation bias removed. Stereo-photogrammetry was used to create a 1992 digital surface model (DSM) and orthophoto mosaic from archived 1992 aerial photographs. These datasets [...]

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Purpose

Malakoff Diggins State Historic Park includes a large rapidly eroding hydraulic mine pit. This data release includes a 1992 digital surface model (DSM), 1992 orthophoto mosaic, masked orthophoto of the study area, 1992 ground cover classification, and 1992 pruned DSM with the vegetation bias removed. These datasets can be used to map vegetation and topographic change, quantify volumetric differences and estimate erosion rates by co-referencing and differencing the 1992 DSM from more recent bare earth digital elevation models. It is recommended that the pruned DSM be used for any topographic or volumetric change analysis.
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ScienceBase WCS

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  • USGS California Water Science Center
  • USGS Data Release Products

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DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/F7T152J9

Raster Extension

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minY39.35639436408527
minX-120.93435466124633
maxY39.385588841998334
maxX-120.88832051227277
rasterTypeGeoTIFF
name1992ortho
nativeCrsEPSG:26910

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