MEDFORD, Ore. -- Four Oregon Department of Forestry fire engines and their two-person crews arrived in Northern California yesterday to help with wildfires that have been ravaging parts of that state. ODF's Southwest and Klamath-Lake districts bordering California sent the crews as part of a long-standing mutual fire aid agreement between U.S. states. Two of the engines came from Grants Pass, one from Klamath Falls and one from Medford. A ninth ODF employee also went from Medford in a support role. Because of more than a dozen wind-driven wildfires, California's governor has declared a fire emergency in three counties - Napa, Sonoma and Yuba. These fast-moving fires have caused fatalities, burned down homes and businesses, caused hurried evacuations and fully engaged local and state firefighting resources. The ODF teams will be put to use where the Northern California incident command deems they are needed most.