King County ESAR is the leading ground search and rescue resource in King County, operating under the King County Sheriff's Office and Washington State Department of Emergency Management. Comprised of passionate and skilled outdoor enthusiasts, they offer a range of services to assist those in need. With an emphasis on wilderness search and rescue, their highly trained members excel in wilderness navigation, survival skills, search methods, and First Aid.

They specialize in locating and aiding lost or injured hikers and climbers, ensuring their stabilization and evacuation to higher levels of care. Additionally, ESAR maintains a technical rescue team for steep and high-angle rope rescue, helicopter procedures and safety, snow travel, and avalanche rescue. They also conduct searches in urban environments for missing individuals who are at-risk or not capable of finding their way back.

Moreover, ESAR supports local law enforcement agencies by conducting evidence searches in large outdoor spaces. The dedication and expertise of ESAR's volunteers make them a reliable and essential resource in search and rescue operations in the region