Notes:
Notes:
In the summer of 1840, Sutter, using both his growing work force and local Indians, began building what would become an adobe fort. The walls were 2.5 feet thick and 15-18 feet high. The compound was 320 feet long. Sutter's Fort was larger than Fort Laramie and half the size of Fort Vancouver. His headquarters was the Central Building, a three floored structure located in the middle of the Fort compound. He had quarters for some of his workers, a bakery, blanket factory, blacksmith shop, carpenter shop and other workshops within the fort. He located a tannery on the American River. Dwellings for guests and his vaqueros were also outside the fort. Probably no more than 50 people stayed inside at any one time prior to 1845. A maximum of 30 people could have used the fort during daylight hours."