On October 30, 2015 Governor Brown issued an emergency declaration
requiring public agencies to identify areas of tree mortality that hold
the greatest potential to result in wildfire and/or falling trees and
threaten people and property in these areas. Once identified, these
areas will be prioritized for removal of dead and dying trees that
present a threat to public safety. Tier Two high hazard zones are defined by watersheds (HUC 12, average
24,000 acres) that have significant tree mortality as well as
significant community and natural resource assets. Work at the Tier Two
level addresses the immediate threat of falling trees and fire risk, and
also supports broader forest health and landscape level fire planning
issues.This service represents the latest official release of HHZ. It will be updated annually when a new version is released. As of June 2019, it represents HighHazardZones19_1.
