For the most reliable and official information regarding fire hazard zones in Las Vegas and Clark County, you should use the Clark County GIS (Geographic Information System).

Specifically, you are looking for the "Wildland Urban Interface" (WUI) designation. In Southern Nevada, "Fire Hazard Zones" are technically classified as WUI zones. These are the legal designations used by the Fire Department and Building Department to determine if a property requires special fire-resistant construction or vegetation management.

Here are the most reliable sources, ranked by their specific use case:

1. The Official Regulatory Source: Clark County OpenWeb

This is the definitive tool used by government agencies, developers, and insurance companies to check a specific property's status.

• What it shows: Parcel-specific zoning, including if a property falls within a Wildland Urban Interface (WUI) area.
• How to use it:
  1. Go to Clark County OpenWeb.
  2. Use the search bar at the top right to enter your address or parcel number.
  3. Once the map zooms to your property, look for the "Layers" list (usually on the right sidebar or a "stacked paper" icon).
  4. Scroll down to the "Public Safety" or "Zoning" section (categories can vary slightly as they update the viewer).
  5. Check the box for "Wildland Urban Interface" or "Fire Hazard" layers.
  • Note: If your property is shaded or outlined when this layer is on, you are in a designated fire hazard zone subject to specific building codes (Clark County Code 15.13).

2. The Best General Risk Map: Nevada Natural Resources & Fire Information Portal

If you are looking for a broader understanding of wildfire risk rather than specific legal zoning, this tool is better. It is managed by the Nevada Division of Forestry.

• Source: Nevada Division of Forestry - Fire Information (often links to the NNRFIP or WildfireRisk.org tools).
• What it shows: Heat maps of fire risk, vegetation fuel loads, and burn probabilities across the entire Las Vegas Valley and surrounding mountains (like Mt. Charleston and Red Rock).
• Best for: Understanding the general danger level of a neighborhood or region rather than checking a specific building code requirement.

3. Active Fire Status (Real-Time)

If your question is about active fires happening right now, do not use the maps above (which are for permanent zoning). Instead, use:

• NV Roads 511: Shows road closures due to wildfires.
• Fire.AirNow.Gov: A federal map that combines satellite fire detection with smoke/air quality sensors.

Summary of Key Terms for Las Vegas

When searching these maps, you likely won't see "Fire Zone 1/2/3" like in California. Instead, look for these local terms:

• WUI (Wildland Urban Interface): The primary hazard zone. Most common in Summerlin (West), Henderson (South/mccullough mountains), and near Mt. Charleston.
• Code 15.13: The county ordinance that governs these zones.