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Resources by type: Spatial data (GIS)

California Major Roads

California Major Roads represents interstate, U.S., and state highways and other major thoroughfares within California.

Hillshade

The U.S. Geological Survey has developed a seamless mosaic of the best-available elevation data called the National Elevation Dataset (NED).

Major Rivers

The National Hydrography Dataset is a comprehensive set of digital spatial data that encodes information about naturally occurring and constructed bodies of water, paths through which water flows, and related entities.

National Elevation Dataset

The U.S. Geological Survey has developed a National Elevation Dataset (NED).

National Wetlands Inventory

National Wetlands Inventory (NWI) data taken directly from U.S. Fish and Wildlife Services National Wetlands Inventory data.

NHD Flowline

The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system.

Soils, Madera Area

This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey.

U.S. and Canada Detailed Streets

U.S. and Canada Detailed Streets represents detailed streets, interstate highways, and major roads within the United States and Canada.

Watershed PWs Units

Calwater 2.2.1 standardizes the boundary delineation, coding, and naming of California watersheds by government agencies.