A Hotshot Crew, or Hotshots, is a group of approximately 20 highly-skilled wildland firefighters specially trained in wildland fire suppression tactics. They often respond to large high-priority fires and are trained and equipped to work in remote areas for extended periods of time with little logistical support. Hotshots are organized not in "teams" but in "handcrews." Hotshot Crews began in Southern California in the late 1940s on the Cleveland and Angeles National Forest. The name was in reference to being in the hottest part of fires. As a rule IHC's are some of the nation's leading wildfire professionals and the work they perform is often the turning point on a fire. Their specialty is wildfire suppression, but they are sometimes assigned other jobs, including search and rescue and disaster response assistance. Hotshots not busy fighting fire will also work to meet resource goals on their home units through thinning, prescribed fire implementation, habitat improvement or trail construction projects.