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LA County GIS Data Catalog

In order to make our data easier to find, sometimes a nice table or spreadsheet is what you want. We have created a new page which lists all of the GIS Data Los Angeles County has identified in its systems, compiled and organized, with active links on this site to where the data can be […]

US Forest Service Enterprise Data

If you are looking for data from the US Forest Service, you can go to their Enterprise Data download location. I recently downloaded the boundaries of the new San Gabriel Mountains National Monument from there.

Click here to access the site

They also make a number of web services available at

LA County Land Types

Current date of the data: August 2015

The Land Types dataset is a public domain dataset managed by the County of Los Angeles which includes various types of land use that are critical for mapmaking and geographic analysis. The data has been created to match parcel boundaries where possible, and digitized from 4-inch aerial photography […]

Orange County City and Special District Boundaries

I was informed that high quality boundary files for cities and special districts in Orange County are available from Orange County LAFCO’s website.

LA City Council Districts (2012)

 

Updated December 2013.

LA City Council Districts as adopted by Final Ordinance 2012 No. 182168. This data was provided by the City of Los Angeles.

These boundaries are legally accurate as specified by the Los Angeles City Bureau of Engineering.

Download

Download the shapefile (includes sample layer file): LA […]

LA City Planning GIS Data Portal

LA City Planning GIS Data Portal

The City of Los Angeles Planning department has launched a GIS Data Portal for downloading various GIS data files pertaining to City Planning information.

You can access the data by going to http://planning.lacity.org, selecting the Maps and Stats button on the left, then […]

LAR-IAC Data Files (Grids & Auxiliary Layers)

LAR-IAC3 AT Block Layout (and links to LAR-IAC and LAR-IAC2 data grids). […]

Watershed Boundaries

This dataset contains watershed boundaries for watersheds covering Los Angeles County.

This dataset was downloaded, extracted and prepared from the National Hydrography Dataset. The NHD is a comprehensive effort by the US Geological Survey to manage and maintain a comprehensive, high quality, nationwide dataset for GIS mapping and analysis of water features and […]

Hydrologic Points

This dataset contains hydologic points (gaging stations, gates, rock features, springs, water intakes, wells, waterfalls, reservoir points) in LA County.

This dataset was downloaded, extracted and prepared from the National Hydrography Dataset. The NHD is a comprehensive effort by the US Geological Survey to manage and maintain a comprehensive, high quality, nationwide dataset […]

Lakes & Reservoirs

This dataset contains lakes & reservoirs in LA County.

This dataset was downloaded, extracted and prepared from the National Hydrography Dataset. The NHD is a comprehensive effort by the US Geological Survey to manage and maintain a comprehensive, high quality, nationwide dataset for GIS mapping and analysis of water features and conveyance. While […]

Rivers, Streams, Water Conveyance (pipelines, aqueducts)

This dataset contains rivers, streams, and water conveyance mechanisms (pipelines, aqueducts).

This dataset was downloaded, extracted and prepared from the National Hydrography Dataset. The NHD is a comprehensive effort by the US Geological Survey to manage and maintain a comprehensive, high quality, nationwide dataset for GIS mapping and analysis of water features and […]

Dams and Debris Basins – Point Locations

Abstract:

Debris Basins are key components of the Los Angeles County Flood Control District’s (LACFCD) flood control system. Typically located at the mouths of canyons, debris basins capture sediment, gravel, boulders, and vegetative debris that are washed out of the canyons during storms, protecting lower lying communities from possible flooding and property damage. Due […]