Portolá Expedition Diaries, 1769-1770

Card image cap

From "An Historical Journal of the Expeditions, by Sea and Land, to the North of California"


Diary of Miguel Costansó

July 14, 1769 to January 24, 1770

Diary of Engineer Miguel Costansó of the exploratory expedition to northern California under the command of Governor Gaspar de Portolá, from San Diego to the vicinity of Monterey Bay and back. They discovered the San Francisco Bay.

Card image cap

By Unknown painter - Exposició Gaspar de Portolà en California, Public Domain,


Diary of Captain Gaspar de Portolá

May 11, 1769, to January 24, 1770

Diary of Captain Gaspar de Portolá of the exploratory expedition made by land to the Ports of San Diego and Monterey.

Card image cap

By Unknown painter - Portrait of Captain Pedro Fages


A Description of California
by Pedro Fages

July 14, 1769 to January 24, 1770

Treatise by Pedro Fages on the California that he knew. This includes articles on it's native people's, the character of the land and its products, and the missions and history of the area.