Description: Overview:This layer shows Hillside Management areas, which are essentially anything with a 25% or greater slope. It is broken down by '25 - 50%', and 'greater than 50%' slope categories for all unincorporated areas with the following exceptions:Forest land that is not a private inholdingForest land outside of a CSD boundaryForest land outside of unincorporated community boundaries that go into the forestDeleted all polygons less than 25 sq. ft.Below is a description of the source Digital Elevation Model and Slope that went into creating this dataset.Digital Elevation Model / LAR-IAC 7:This 1 meter Digital Elevation Model (DEM) is a model of surface elevation in the County of Los Angeles developed by the Los Angeles Regional Imagery Consortium (LAR-IAC). The LAR-IAC project encompasses the entire land area of Los Angeles County in mainland plus Catalina Island. The Area of Digital Elevation Model data developed over the Urban/Suburban area mainland covers approximately 4214 square miles. Tiles were downloaded in September, 2025 from the USGS National Map: https://apps.nationalmap.gov/lidar-explorer/#/. This dataset was re-projected from the original NAD83, UTM Zone 11N projection to State Plan, CA Zone V. The grid size is 3.28 x 3.28 feet to be equivalent to 1 meter.Detailed product information (including accuracy report) is contained in the LAR-IAC7 Product Guide.We highly recommend that you visit the LAR-IAC Project Website to find a rich source of information about the data and the LAR-IAC program. The site includes project documents, full FGDC compliant metadata, data downloads of related GIS used to complete the project, sub-licensing information, sample imagery and data, and information about this acquisition.GIS Data showing flight-date information is available from the LAR-IAC Project website site, and elsewhere in the LA County GIS Data PortalUpdate History:11/30/15 - originally added to SDE10/30/25 - Loaded into SDE and replaced the former version of Hillside Management that was generated in 2006.
Feature Type: Polygon
Type: FeatureLayer
Display Field: STATUS
Primary Key Field: OBJECTID
Show Map Tips: False
Searchable: False
Identifiable: True
Queryable: True
Can Copy Feature: True
Snappable: True
Snapping Enabled: False
Has Attachments: False
Feature Label: {STATUS}
Feature Description: N/A
Feature Long Description: N/A
Feature Zoom Factor: N/A
Feature Zoom Scale: N/A
Feature Border Color: N/A
Feature Border Width: N/A
Feature Fill Color: N/A
Icon: N/A
Include in Layer List: True
Include in Legend: True
Can Toggle Labels: False
Allow Symbolization: True
Draw Index: 35
Legend URL: N/A
Style Name: N/A
Data Provider: Default
Time Zone ID: Etc/UTC
Fields:
OBJECTID (Type: Int32, Visible: False, Searchable: False, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
STATUS [HMA Type] (Type: String, Visible: True, Searchable: False, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: False, Addressable: True)
Shape (Type: Object, Visible: False, Searchable: False, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
Shape.STArea() (Type: Double, Visible: False, Searchable: False, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
Shape.STLength() (Type: Double, Visible: False, Searchable: False, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)