Welcome to the California Department of Conservation

Search for SMARA Mineral Land Classification Maps

Click inside any of the Study Areas (grey & brown boxes or green circles) to find minerals related information for that area.

Zoom to an area of the state using the following county list or navigate to an area using the map naviation tools.



Study Area
Overlapping Study Areas
Petitions (small study areas)

Map results

There are no results, you need to first click inside any of the Study Areas to see the results here.

Learn more about the maps.

Mineral Land Classification studies are produced by the State Geologist as specified by the Surface Mining and Reclamation Act (SMARA, PRC 2710 et seq.) of 1975. To address mineral resource conservation, SMARA mandated a two-phase process called classification-designation. Classification is carried out by the State Geologist and designation is a function of the State Mining and Geology Board. The classification studies contained here evaluate the mineral resources and present this information in the form of Mineral Resource Zones.

The objective of the classification-designation process is to ensure, through appropriate local lead agency policies and procedures, that mineral materials will be available when needed and do not become inaccessible as a result of inadequate information during the land-use decision-making process.