Map of the northern portion of San Francisco County / compiled from survey's, June 1st, 1852, by Clement Humphreys, County Surveyor.
1 : 147520 Relief shown by hachures and spot heights.
Covers area from Point San Bruno northward.
Oriented with north to the left. San Francisco (Calif.). Office of the County Surveyor. [San Francisco, Calif. : Office of the County Surveyor]