Regional Reference Maps These maps contain the information that is used in our regional growth model. To view each map, click on the image to link to an enlarged high-resolution map in PDF format. (Note: All files are very large 3MB PDF files) Regional Base Map   This map identifies state and federally owned lands,   conservation easement areas, utility facilities areas,   as well as urban areas, lakes and reservoirs, and   roads.   Air Pollution Sources   This map identifies Air Pollution Control District defined   areas that are unsuitable for residential development   based on air pollution emissions.     FEMA Flood Zones                            This map identifies Federal Emergency Management   Area (FEMA) defined 100-year and 500-yr flood zone     areas.   Important Farmland   This map identifies CA Dept of Conservation, Division   of Land Resource Protection, Farmland Mapping and   Monitoring Program Important Farmland Areas. These   areas are defined as Prime Farmland,  Farmland of   Statewide Importance, Unique Farmland and Farmland   of Local Importance.   Natural Diversity Database            This map identifies the CA Department of Fish & Game   Natural Diversity Database (NDDB) areas. The NDDB   inventories the status and locations of rare plants and   animals in California.     Oak Woodlands   This map identifies the CA Dept of Forestry and Fire   Protection , Forest and Rangeland Resources   Assessment extent of hardwoods.