Many archaeologists in the United States and some other countries apply their skills in cultural resource management specialist jobs. They are employed by the National Park and Forest Services, the U.S. military, and other government agencies as well as private companies to prevent or mitigate the destruction of archaeological sites and other important cultural resources. They record the locations of unknown archaeological sites and carry out sample excavations to determine their cultural significance and to recommend measures for preservation or further study before they are destroyed by construction projects.