The wildfires in Northern California have reached historic proportions, killing six people, and destroying nearly 1,800 structures and more than 1,000 homes.

The Valley Fire has burned 75,781 acres of land in Lake, Napa and Sonoma counties since it began on Sept. 12. Cal Fire spokesman Daniel Berlant said the 118-square-mile wildfire damaged 1,780 structures as of Monday afternoon, making it the third-worst wildfire in state history, according to Napa Valley Patch. So far, 70 percent of the blaze has been contained.

Berlant said California Department of Forestry and Fire Protection teams have completed about 80 percent of damage assessment, reports Fox News. However, they mainly focused on homes, and have not determined how many additional structures, including sheds, barns and other outbuildings, have been destroyed.

Meanwhile, another blaze began Saturday afternoon about two miles north of the community of Jamesburg. It has either destroyed or damaged 10 homes and burned 1,086 acres. It was reported to be 30 percent contained.

The Butte Fire, which began on Sept. 9, in Amador and Calaveras Counties, has destroyed over 70,000 acres of land, 500 homes and nearly 300 structures. Some of the thousands of Northern California residents who were forced to evacuate began to receive aid from insurance companies to rebuild their homes.

On Monday, California Gov. Jerry Brown requested a presidential major disaster declaration. The measure would allocate federal funding for fire victims, and supplement state and local disaster recovery efforts, the governor said in a statement, The Sacramento Bee reports. The declaration would also authorize long-term federal recovery programs while helping public entities and nonprofit organizations.

According to Brown, the blazes have forced more than 30,000 people to evacuate their homes.

"The biggest challenge is there aren't enough hotel rooms in Lake County," county Supervisor Jim Comstock said Monday, reports Firefighter Nation.