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This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

DMR All Mines

Metadata Updated: January 23, 2026

This service presents location, status, and other information regarding mining operations regulated under the Surface Mining and Reclamation Act of 1975 (SMARA) in California. The data presented in this service is reported by mine operators in annual reports provided to the California Department of Conservation Division of Mine Reclamation (DMR) under Public Resources Code section 2207. While DMR attempts to populate Mines Online with accurate map coordinate data, the DMR cannot guarantee the accuracy of operator-reported location information.

Access & Use Information

Public: This dataset is intended for public access and use. Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: See this page for license information.

Downloads & Resources

Dates

Metadata Created Date January 23, 2026
Metadata Updated Date January 23, 2026

Metadata Source

Harvested from State of California

Additional Metadata

Resource Type Dataset
Metadata Created Date January 23, 2026
Metadata Updated Date January 23, 2026
Publisher California Department of Conservation
Maintainer
Identifier ff1b37df-34bb-49d0-98e1-6999897e3959
Data First Published 2017-04-11T22:20:46.000Z
Data Last Modified 2020-05-02T21:13:09.011Z
Category Natural Resources
Public Access Level public
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 0380ad20-d31b-4bd2-9f71-852563724c04
Harvest Source Id 3ba8a0c1-5dc2-4897-940f-81922d3cf8bc
Harvest Source Title State of California
License http://www.opendefinition.org/licenses/cc-by
Source Datajson Identifier True
Source Hash c0afd72496c740ed4d9bc39ad272a8c6636f1e61383e86d6d270fbf8a90114b9
Source Schema Version 1.1

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