Service Description: This feature class contains Comstock-era tailings locations throughout Operable Unit 1 of the Carson River Mercury Site within Lyon and Storey Counties, Nevada.
Service ItemId: 0e0fdd49613545b99cef07c513b44994
Has Versioned Data: false
Max Record Count: 2000
Supported query Formats: JSON
Supports applyEdits with GlobalIds: False
Supports Shared Templates: False
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Description: This feature class contains Comstock-era tailings locations throughout Operable Unit 1 (OU1) of the Carson River Mercury Site (CRMS) within Lyon and Storey Counties, Nevada. Piedmont Engineering was contracted by NDEP to conduct an archeological survey of Comstock-era mining and milling features. These locations were obtained in order to define the investigation area boundaries of the Carson River Mercury Site. The field survey took place in 1993; NDEP later created the geospatial data representing the surveyed features. Additional features were added by NDEP using historical documents and aerial imagery.
The hardcopy Piedmont Engineering maps of Comstock-era mills and tailings sites were georeferenced by NDEP. Tailings polygons were digitized in ArcGIS Desktop. The original hardcopy maps were drawn at a scale of 1:2400 (written as 1" = 200' in the maps).
Metadata
Copyright Text: NDEP Bureau of Corrective Actions, Piedmont Engineering
Spatial Reference: 102100 (3857)
Initial Extent:
XMin: -13324497.9679603
YMin: 4752943.3628871
XMax: -13304103.48651
YMax: 4768314.39877638
Spatial Reference: 102100 (3857)
Full Extent:
XMin: -13349726.3479149
YMin: 4730802.87212855
XMax: -13166928.2242572
YMax: 4859740.83435133
Spatial Reference: 102100 (3857)
Units: esriMeters
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