This polygon shapefile contains mineral resource areas as defined in the General Plan adopted May 24, 1994 for the County of Santa Cruz, California. These Areas were classified by the State Geologist and designated by the State Mining and Geology Board as regionally or statewide significant Mineral Resource Areas and Areas classified by the State as MRZ-2 Zones (areas containing significant mineral deposits), excluding those areas with existing land uses and/or land use designations which conflict with mineral resource extraction. Mineral Resource Areas are classified via Special Report 146 Part IV, Mineral Land Classification: Aggregate Materials in the San Francisco and Monterey Bay Area; and designated by the State Mining and Geology Board via the California Surface Mining and Reclamation Act (SMARA) Designation Report No. 7, Designation of Regionally Significant Construction Aggregate Resource Areas in the South San Francisco Bay, North San Francisco Bay, Monterey Bay Production - Consumption Regions. This layer is part of a collection of GIS data created for Santa Cruz County, California. The Geographic Information Systems (GIS) Unit falls under the purview of the County of Santa Cruz Information Services Department. The GIS Unit serves all County departments and external customers and provides data on land, features and people of Santa Cruz County. Santa Cruz County encompasses 4 cities and approximately 265,000 people. This coverage can be used for basic applications such as viewing, querying and map output production, or to provide a basemap to support graphical overlays and analyses of geospatial data. County of Santa Cruz Information Services Department. (2015). Mineral Resources: Santa Cruz County, California, 2015. Santa Cruz County, California. Available at http://purl.stanford.edu/bc559yb0972. GIS Layer Number = 53/ Original Mapping Source: Growth Management Environmental Report Timber and Mineral Resource Map. Map Used to Convert to GIS: Source Map. New Information Acceptable for Updating Maps: General Plan and Local Coastal Plan Amendment. Parcel Specific Overiding Information: Not Applicable. Source maps boundaries were traced or transferred to USGS 7.5 minute quadrangle sheets. Boundaries were then digitized using known control points or intersections of roads for reference. For some sheets, as few as two known control points were available. The boundaries were plotted and reviewed by the County's Advanced Planning staff. These data were compiled from many different sources; therefore, the accuracy of the individual layers varies significantly, and some layers do not align exactly with others. In the urban areas, data are generally accurate within five to ten feet of their true geographic coordinates, but in the rural areas, data may be accurate to only within three hundred feet. With these limitations, the County of Santa Cruz disclaims any responsibility for the accuracy or correctness of this data. This disclaimer is exclusive and in lieu of any warranties, fitness for particular purpose, and/or any other type of warranty, whether expressed or implied. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.