Image Details:

Beautiful hand drawn map of the Los Angles-San Bernadino Basin. Probably one of the earliest maps to show the L.A. Basin with detailed topographic relief. Pen-and-ink and pencil. Relief shown by hachures. It appears to be a base map on a scale of two miles to an inch, probably preliminary (several of Hall's notations on the edges indicate corrections needed to the topography). The map's author, William Hammond Hall was a famous engineer who was the first California state engineer and was responsible for many of the early state water projects.