TOMS Summary

TOMS Summary

Feature Class

Tags
Mine, Topographically Occuring Mine Symbols, TOMS


Summary

-->To develop a statewide digital spatial dataset of accurately located mining features. Other digital datasets covering the state are limited to mining operations (or claims) but do not locate physical features resulting from mining. This dataset has been aggregated to 5 sq. mile hexagonal grids for display. The map service provides three layers. One displays based on the count of point features, a second by length of line features, and the third by the area of polygon features.-->

Description

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Mining feature symbols digitized from 1:24000 scale, 7.5 minute USGS topographic quadrangles as scanned by the Stephen P. Teale Data Center (July, 1998).

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Credits

-->Eric Miller, Jonathan Mistchenko, Sarah Reeves, Mike Tuffly, Consumnes College, Shasta College, University of California at Davis,-->

Use limitations

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The Department makes no warranty of any kind, express or implied, nor assumes any legal liability or responsibility for the integration of the information, programs or software into any other personal or private computer system or hardware. The user of this information assumes any and all risks and understands that this information is provided on an "as is" basis. All warranties of any kind, express or implied, including but not limited to the implied warranties of merchantability, fitness for a particular purpose, freedom from contamination computer viruses and non-infringement of proprietary rights are disclaimed.

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Extent

West -124.745741 East -113.833103
North 42.267370 South 32.284909

Scale Range
Maximum (zoomed in) 1:5,000
Minimum (zoomed out) 1:50,000

ArcGIS Metadata

Topics and Keywords

*Content type Downloadable Data

Theme keywords Mine
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Citation

TitleTOMS_5sqmhex_summary Publication date2001-06-05

Edition1.0

Presentation formats digital map FGDC geospatial presentation format vector digital data

Series NameTopographically Occurring Mine Symbols (TOMS) IssuePoints
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Citation Contacts

Responsible party Organization's nameCalifornia Department of Conservation, Office of Mine Reclamation, Abandoned Mined Lands Unit Contact's role originator

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Resource Details

Dataset languages English(UNITED STATES)

Status completed Spatial representation type vector

*Processing environment Version 6.2 (Build 9200) ; Esri ArcGIS 10.4.1.5686

Credits -->Eric Miller, Jonathan Mistchenko, Sarah Reeves, Mike Tuffly, Consumnes College, Shasta College, University of California at Davis,-->
ArcGIS item properties NameTOMS_5sqmhex_summary
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Extents

Extent Geographic extent Bounding rectangle West longitude-124.473227 East longitude-113.473814 South latitude32.430298 North latitude42.170724
Extent Description -->publication date-->
Temporal extent Beginning date Indeterminate dateunknown Ending date1998-01-01
Extent Geographic extent Bounding rectangle Extent type Extent used for searching *West longitude-124.745741 *East longitude-113.833103 *North latitude42.267370 *South latitude32.284909 *Extent contains the resourceYes
Extent in the item's coordinate system *West longitude-13886632.343400 *East longitude-12671843.112800 *South latitude3800767.779200 *North latitude5201114.743900 *Extent contains the resourceYes
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Resource Points of Contact

Point of contact Individual's nameJonathan Mistchenko Organization's nameOffice of Mine Reclamation Contact's positionEngineering Geologist Contact's role point of contact

Contact information
Phone Voice916-323-9198 Fax916-322-4862
Address Typeboth Delivery point801 K St., MS 09-06 CitySacramento Administrative areaCA Postal code95814 CountryUS e-mail addressomr@consrv.ca.gov
Hours of service -->8-5, M-F-->
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Resource Maintenance

Resource maintenance Update frequency as needed

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Resource Constraints

Legal constraints Limitations of use -->The Department makes no warranty of any kind, express or implied, nor assumes any legal liability or responsibility for the integration of the information, programs or software into any other personal or private computer system or hardware. The user of this information assumes any and all risks and understands that this information is provided on an "as is" basis. All warranties of any kind, express or implied, including but not limited to the implied warranties of merchantability, fitness for a particular purpose, freedom from contamination computer viruses and non-infringement of proprietary rights are disclaimed.-->
Limitations of use -->The State of California, Department of Conservation, its employees, agents or contractors make no warranty of any kind, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any of the maps and associated information. The locations and extent of these mine sites have not been confirmed by field investigations. The information is subject to change as more accurate and up-to-date information becomes available. While the Department may update this information from time to time, available resources may prevent the Department from updating this information on a timely basis. The Department therefore does not warrant that this information is the most current and up-to-date information. The user of the information assumes all responsibility for ensuring that they have the most current and accurate information. All maps are designed for use at the designated scale and should not be enlarged or used for making site-specific decisions of any kind. Distribution of this data is intended for informational purposes and should not be considered authoritative or relied upon for navigation, engineering, legal, or other site-specific uses, including but not limited to the obligations of sellers of real property and their disclosure obligations under California law.-->
Constraints Limitations of use -->

The Department makes no warranty of any kind, express or implied, nor assumes any legal liability or responsibility for the integration of the information, programs or software into any other personal or private computer system or hardware. The user of this information assumes any and all risks and understands that this information is provided on an "as is" basis. All warranties of any kind, express or implied, including but not limited to the implied warranties of merchantability, fitness for a particular purpose, freedom from contamination computer viruses and non-infringement of proprietary rights are disclaimed.

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Spatial Reference

ArcGIS coordinate system *TypeProjected *Geographic coordinate referenceGCS_WGS_1984 *ProjectionWGS_1984_Web_Mercator_Auxiliary_Sphere *Coordinate reference details Projected coordinate system Well-known identifier102100 X origin-20037700 Y origin-30241100 XY scale10000 Z origin0 Z scale1 M origin0 M scale1 XY tolerance0.001 Z tolerance0.001 M tolerance0.001 High precisiontrue Latest well-known identifier3857 Well-known textPROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]
Reference system identifier *Value3857 *CodespaceEPSG *Version8.8(9.3.1.2)

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Spatial Data Properties

Vector
*Level of topology for this dataset geometry only

Geometric objects Feature class nameTOMS_5sqmhex_summary *Object type composite *Object count40347
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ArcGIS Feature Class Properties
Feature class nameTOMS_5sqmhex_summary *Feature typeSimple *Geometry typePolygon *Has topologyFALSE *Feature count40347 *Spatial indexTRUE *Linear referencingFALSE
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Data Quality

Scope of quality information
Resource level dataset

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Data quality report - Conceptual consistency
Measure description -->Logical consistency was insured by ocular inspection. No specific systematic tests were employed.-->


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Data quality report - Completeness omission
Measure description -->Data is statewide in extent. Coverage varies from quadrangle to quadrangle due to revisions of the source maps.-->


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Data quality report - Quantitative attribute accuracy
Measure description -->Ten percent of the quads were sampled for omission and attribute accuracy. From the sampled population, there were approximately ten percent errors on the attributes and ten percent on omission. All found errros were corrected. -->


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Data quality report - Absolute external positional accuracy
Dimensionhorizontal

Measure description -->Positional accuracy is reliant on the accuracy of the original source maps. USGS topographic quadrangles typically state that the maps comply with national map accuracy standards. Human digitization of the mining symbols has likely added slight deviations from the original source map, though no formal method has been undertaken to quantify this additional error.-->


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Lineage

Process step
When the process occurred2001-01-01 Description -->Each DRG covering a quadrangle was occularly inspected for mining features (as markers, lines or areas). Features were digitized from the DRG's and attributes were completed concurrently. The feature layers for each quadrangle were then merged to form a statewide dataset. Several quality control inspections were undertaken to identify errors of omission, comission and positional errors. Such errors have been corrected where identified.-->


Source data
Relationship to the process stepused

Source citation
Alternate titles trimdrg

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Source data
Description -->All data in the dataset is derived from the 1:24,000 7.5-minute USGS topographic quadrangles. See trimdrg1.txt for source metadata-->


Source medium name CD-ROM Resolution of the source data Scale denominator24000
Source citation
TitleDRG - Digital Raster Graphic, USGS 7.5-minute Quad Images (trimmed) Alternate titles trimdrg Publication date1998-01-01

Presentation formats digital map FGDC geospatial presentation format raster digital data

Responsible party Organization's nameStephen P. Teale Data Center Contact's role originator

Responsible party Organization's nameStephen P. Teale Data Center Contact's role publisher

Contact information
Address Delivery pointSacramento, CA
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Extent of the source data Description -->publication date-->
Temporal extent Beginning date1996-01-01 Ending date1998-01-01
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Distribution

Distributor
Contact information Contact's role distributor

Contact information
Address Typeboth Delivery point801 K St., MS 09-06 CitySacramento Administrative areaCA Postal code95814 CountryUS
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Transfer options Online source Description TOMS
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Distributor
Contact information Individual's nameJonathan Mistchenko Organization's nameOffice of Mine Reclamation Contact's positionEngineering Geologist Contact's role distributor

Contact information
Phone Voice916-323-9198 Fax916-322-4862
Address e-mail addressomr@consrv.ca.gov
Hours of service -->8-5, M-F-->
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Transfer options Online source Description TOMS
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Distribution format NameFeature Class

Transfer options Online source Locationhttp://www.consrv.ca.gov/OMR/abandoned_mine_lands/toms/index.htm
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Fields

Details for objectTOMS_5sqmhex_summary
*TypeFeature Class *Row count40347 Definition -->Attributes of point mine features as they exist on USGS 7.5-minute (1:24000) topographic quadrangles.-->
Definition source -->Office of Mine Reclamation-->


FieldOBJECTID
*AliasOBJECTID *Data typeOID *Width4 *Precision10 *Scale0 *Field description -->Internal feature number.-->
*Description source -->Esri-->
*Description of values -->Sequential unique whole numbers that are automatically generated.-->


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FieldInput_FID
*AliasInput_FID *Data typeInteger *Width4 *Precision10 *Scale0

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FieldHexID
*AliasHexID *Data typeInteger *Width4 *Precision10 *Scale0

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FieldPointCnt
*AliasPointCnt *Data typeInteger *Width4 *Precision10 *Scale0

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FieldLengthSum
*AliasLengthSum *Data typeDouble *Width8 *Precision38 *Scale8

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FieldAreaSum
*AliasAreaSum *Data typeDouble *Width8 *Precision38 *Scale8

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FieldPopupInfo
*AliasPopupInfo *Data typeString *Width1000 *Precision0 *Scale0

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FieldShape
*AliasShape *Data typeGeometry *Width4 *Precision0 *Scale0 *Field description -->Feature geometry.-->
*Description source -->Esri-->
*Description of values -->Coordinates defining the features.-->


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FieldShape.STArea()
*AliasShape.STArea() *Data typeDouble *Width0 *Precision0 *Scale0

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FieldShape.STLength()
*AliasShape.STLength() *Data typeDouble *Width0 *Precision0 *Scale0

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Metadata Details

Metadata languageEnglish(UNITED STATES) Metadata character set utf8 - 8 bit UCS Transfer Format

Scope of the data described by the metadata dataset Scope name *dataset

*Last update2017-06-30

ArcGIS metadata properties Metadata formatArcGIS1.0 Metadata styleFGDC CSDGM Metadata Standard or profile used to edit metadataFGDC

Created in ArcGIS for the item2017-05-3014:29:56 Last modified in ArcGIS for the item2017-06-3015:19:38

Automatic updates Have been performedYes Last update2017-06-3015:15:16

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Metadata Contacts

Metadata contact Individual's nameEric G. Miller Organization's nameOffice of Mine Reclamation Contact's positionResearch Analyst Contact's role point of contact

Contact information
Phone Voice916-323-9198
Address Typeboth Delivery point801 K St., MS 09-06 CitySacramento Administrative areaCA Postal code95814 CountryUS e-mail addressomrcal@consrv.ca.gov
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