Unfenced

Unfenced is a land-search tool that checks roughly 700,000 U.S. property listings every week against official public-land maps and surfaces the homes and land parcels that actually border public land such as national forest, BLM, and state land. Each property is measured from its county parcel boundary, showing the shared edge in feet on a map, along with details like elevation, road access, flood zone, and wildfire hazard.