GIS Map Accessible Description

Map Summary

County Services is a Ventura County county-services locator map.

Geographic Context

The map covers Ventura County on the Southern California coast. Ventura County lies between Santa Barbara County to the west and Los Angeles County to the east and southeast, with the Santa Barbara Channel and offshore islands to the south. Within the county, the principal city corridor extends along the south coast and southeastern urban area through Ventura, Oxnard, Camarillo, Thousand Oaks, and Simi Valley, with smaller inland city areas at Ojai, Santa Paula, Fillmore, and Moorpark.

• The countywide map frame spans approximately from 119 degrees 37 minutes 39.000 seconds West to 118 degrees 34 minutes 57.000 seconds West and from 33 degrees 7 minutes 31.548 seconds North to 34 degrees 59 minutes 9.492 seconds North.
• The saved view is slightly tighter, spanning approximately from 119 degrees 55 minutes 18.468 seconds West to 118 degrees 29 minutes 38.685 seconds West and from 34 degrees 7 minutes 55.583 seconds North to 34 degrees 51 minutes 54.113 seconds North.
• The jurisdictional context includes the incorporated Ventura County cities of Fillmore, Moorpark, Simi Valley, Santa Paula, Oxnard, Ojai, Port Hueneme, Camarillo, San Buenaventura, and Thousand Oaks.

Legend and Symbology

• County Services
  • Geometry: The package metadata does not explicitly state the geometry type for this second layer, but it is paired with the first County Services layer and uses similar category-driven service metadata.
  • Symbology: Unique-value symbology organized by service category, including Agriculture / Weights & Measures, Airports, Animal Services, Board of Supervisors Office, Detention Services, Fire Stations, Government, Health Care Clinics, Hospitals, Human Services, Law Enforcement, Legal, Libraries, Medical Examiner, Public Works, Recreation, Parks, Trails, Community Centers, and Resource Management Agency.
  • Outline: Not clearly supported in the package evidence.
  • Transparency: Not clearly supported in the package evidence.
  • Pattern: Category-based discrete symbols rather than a continuous fill.
  • Labeling: No label classes are documented in the renderer evidence.
  • Spatial placement: This second County Services layer is also positioned countywide and appears to work as a paired operational layer alongside the first County Services layer.
  • Spatial extent: The layer is shown within the saved county view, approximately from 119 degrees 55 minutes 18.468 seconds West to 118 degrees 29 minutes 38.685 seconds West and from 34 degrees 7 minutes 55.583 seconds North to 34 degrees 51 minutes 54.113 seconds North.
  • Mental model: This is the second main service-location layer, likely serving as a companion to the first County Services layer for display or interaction while preserving the same county services theme.
• City Boundary
  • Geometry: Polygon features.
  • Symbology: No visible fill with a thin boundary outline defining incorporated city limits.
  • Outline: Thin solid outline.
  • Transparency: Transparent interior.
  • Pattern: Solid outline.
  • Labeling: No label classes are documented in the package evidence for this operational layer.
  • Spatial placement: The layer traces incorporated city boundaries across the southern, central, and eastern urbanized parts of Ventura County, including Fillmore, Moorpark, Simi Valley, Santa Paula, Oxnard, Ojai, Port Hueneme, Camarillo, San Buenaventura, and Thousand Oaks.
  • Spatial extent: This layer extends approximately from 119 degrees 17 minutes 36.711 seconds West to 118 degrees 47 minutes 24.327 seconds West and from 34 degrees 9 minutes 2.801 seconds North to 34 degrees 24 minutes 37.996 seconds North.
  • Mental model: This is the municipal reference framework that helps place county service locations against city jurisdiction edges.
• Supervisor Districts
  • Geometry: Polygon features.
  • Symbology: Countywide supervisorial district polygons. The renderer details are not fully present in the web map JSON, but the layer functions as the district area fill companion to the district boundary layer.
  • Outline: Not clearly supported beyond the separate boundary layer.
  • Transparency: Not clearly supported in the package evidence.
  • Pattern: District area polygons.
  • Labeling: The sample attribute table identifies five districts and associated supervisor names: Matthew Lavere, Jeffrey Frederick Gorell, Kelly Long, Janice S Parvin, and Vianey Lucia Lopez.
  • Spatial placement: The layer covers all of Ventura County and organizes the county services map into five county-level districts that cross the coast, inland valleys, and northern mountain areas.
  • Spatial extent: This layer is shown countywide, approximately from 119 degrees 37 minutes 39.000 seconds West to 118 degrees 34 minutes 57.000 seconds West and from 33 degrees 7 minutes 31.548 seconds North to 34 degrees 59 minutes 9.492 seconds North.
  • Mental model: This is the county governance geography that frames the service locations within supervisorial jurisdiction.
• Basemap (Group Layer)
  • This grouped basemap provides the land, water, terrain, imagery, and reference context beneath the operational county services layers.
  • Reference (Group Layer)
    • This subgroup contains reference labeling above the base map.
    • World_Terrain_Reference_Derivative
      • Geometry: Vector tile reference layer.
      • Symbology: Gray place labels and reference text over the terrain base.
      • Outline: Not applicable.
      • Transparency: Appears opaque for text and reference marks.
      • Pattern: Solid text and line reference symbols.
      • Labeling: This layer is itself the label-bearing reference layer.
      • Spatial placement: Labels are distributed across Ventura County, neighboring counties, the channel, and nearby regional places.
      • Spatial extent: This reference layer supports the full county view, approximately from 119 degrees 37 minutes 39.000 seconds West to 118 degrees 34 minutes 57.000 seconds West and from 33 degrees 7 minutes 31.548 seconds North to 34 degrees 59 minutes 9.492 seconds North.
      • Mental model: This layer supplies the names that anchor the county services map to recognizable places.
  • Base (Group Layer)
    • This subgroup contains the terrain, imagery, and boundary reference layers beneath the operational content.
    • World Hillshade
      • Geometry: Tiled hillshade basemap layer.
      • Symbology: Medium to dark gray shaded relief emphasizing mountains, ridges, and valleys.
      • Outline: Not applicable.
      • Transparency: Opaque.
      • Pattern: Continuous shaded terrain.
      • Labeling: None.
      • Spatial placement: Relief covers the full county scene, with strongest texture in the inland and northern mountains and flatter appearance along the coastal plain.
      • Spatial extent: This layer supports the full county view, approximately from 119 degrees 37 minutes 39.000 seconds West to 118 degrees 34 minutes 57.000 seconds West and from 33 degrees 7 minutes 31.548 seconds North to 34 degrees 59 minutes 9.492 seconds North.
      • Mental model: This is the physical landform backdrop that distinguishes the mountainous north from the flatter south coast and valley floor.
    • World Terrain Base
      • Geometry: Vector tile basemap layer.
      • Symbology: Light gray and tan terrain base with pale blue water areas.
      • Outline: Not applicable.
      • Transparency: Semi-transparent appearance in the basemap stack.
      • Pattern: Continuous terrain and land cover base.
      • Labeling: None in this base layer.
      • Spatial placement: The layer spans Ventura County and the immediately surrounding region, separating coastline, valleys, foothills, and neighboring county context.
      • Spatial extent: This layer supports the full county view, approximately from 119 degrees 37 minutes 39.000 seconds West to 118 degrees 34 minutes 57.000 seconds West and from 33 degrees 7 minutes 31.548 seconds North to 34 degrees 59 minutes 9.492 seconds North.
      • Mental model: This is the neutral regional ground layer that keeps the county services overlays legible while preserving geographic context.
    • National Forest Boundary
      • Geometry: Vector tile polygon and boundary layer.
      • Symbology: Pale green semi-transparent forest area in the northern uplands.
      • Outline: Forest boundary emphasis.
      • Transparency: Semi-transparent.
      • Pattern: Solid area tint.
      • Labeling: Not clearly supported in the package evidence.
      • Spatial placement: This layer appears across the northern mountain part of Ventura County, above the main coastal and southeastern city corridor.
      • Spatial extent: This layer supports the full county view, approximately from 119 degrees 37 minutes 39.000 seconds West to 118 degrees 34 minutes 57.000 seconds West and from 33 degrees 7 minutes 31.548 seconds North to 34 degrees 59 minutes 9.492 seconds North.
      • Mental model: This layer marks protected upland land that contrasts with the more urban and service-rich county lowlands.
    • 2024 County Wide Aerial
      • Geometry: Tiled aerial imagery layer.
      • Symbology: Natural-color aerial imagery softened beneath the operational layers.
      • Outline: Not applicable.
      • Transparency: Semi-transparent appearance in the saved map stack.
      • Pattern: Continuous photographic image.
      • Labeling: None.
      • Spatial placement: The imagery covers Ventura County and nearby surrounding area, showing the agricultural plain, city grids, beaches, hills, and mountain textures beneath the county services layers.
      • Spatial extent: This layer supports the full county view, approximately from 119 degrees 37 minutes 39.000 seconds West to 118 degrees 34 minutes 57.000 seconds West and from 33 degrees 7 minutes 31.548 seconds North to 34 degrees 59 minutes 9.492 seconds North.
      • Mental model: This layer gives real-world surface context so county service locations can be understood against the built and natural landscape.
    • Cities
      • Geometry: Grouped municipal reference layer represented as a single table of contents item in the package hierarchy.
      • Symbology: City reference content associated with municipal boundaries and areas of influence.
      • Outline: Light municipal outlines where visible.
      • Transparency: Mostly transparent or subtle overlay appearance.
      • Pattern: Solid outlines and area tints.
      • Labeling: Not separately documented at this table of contents level.
      • Spatial placement: The layer is concentrated across Ventura County cities in the southern, central, and eastern urban areas.
      • Spatial extent: This layer supports the full county view, approximately from 119 degrees 37 minutes 39.000 seconds West to 118 degrees 34 minutes 57.000 seconds West and from 33 degrees 7 minutes 31.548 seconds North to 34 degrees 59 minutes 9.492 seconds North.
      • Mental model: This is a municipal reference layer that helps place county service locations in relation to recognized city footprints.
    • OceanMask
      • Geometry: Vector tile polygon layer.
      • Symbology: Pale blue solid fill over ocean water.
      • Outline: Coastline edge visually separates water from land.
      • Transparency: Opaque or nearly opaque.
      • Pattern: Solid fill.
      • Labeling: None.
      • Spatial placement: The layer covers the Santa Barbara Channel and offshore water south of the Ventura County coastline.
      • Spatial extent: This layer supports the full county view, approximately from 119 degrees 37 minutes 39.000 seconds West to 118 degrees 34 minutes 57.000 seconds West and from 33 degrees 7 minutes 31.548 seconds North to 34 degrees 59 minutes 9.492 seconds North.
      • Mental model: This layer creates a clean coastal water field so the county landmass and shoreline service context stand out clearly.
    • Counties
      • Geometry: Vector tile boundary layer.
      • Symbology: Subtle county boundary lines and county reference context.
      • Outline: Light county boundary lines.
      • Transparency: Mostly transparent with light linework.
      • Pattern: Solid boundary lines.
      • Labeling: County reference labeling may be present through the broader basemap stack.
      • Spatial placement: The layer frames Ventura County against neighboring counties to the west, east, and southeast.
      • Spatial extent: This layer supports the full county view, approximately from 119 degrees 37 minutes 39.000 seconds West to 118 degrees 34 minutes 57.000 seconds West and from 33 degrees 7 minutes 31.548 seconds North to 34 degrees 59 minutes 9.492 seconds North.
      • Mental model: This layer places the county services map within the larger Southern California county geography.

What the Map Shows

This map is designed to show county service locations and service types across Ventura County, using city boundaries and supervisor districts as reference geography.

The county service categories documented in the package include Agriculture / Weights &amctical reading structure is therefore county services first, then jurisdiction. p; Measures, Airports, Animal Services, Board of Supervisors Office, Detention Services, Fire Stations, Government, Health Care Clinics, Hospitals, Human Services, Law Enforcement, Legal, Libraries, Medical Examiner, Public Works, Recreation, Parks, Trails, Community Centers, and Resource Management Agency.

The district layers provide county governance context, while the city boundary layer provides municipal context. The basemap adds terrain, aerial imagery, coastline, and place labels so the county service locations can be mentally tied to mountains, valleys, urban corridors, and shoreline areas.

The overall map purpose is clear: it is a countywide reference map for locating Ventura County service types within city and supervisorial geography.