It appears to be this one: https://en.wikipedia.org/wiki/Rancho_Ca%C3%B1ada_de_Verde_y_Arroyo_de_la_Purisima https://en.wikipedia.org/wiki/Rancho_Ca%C3%B1ada_d

It appears to be this one: https://en.wikipedia.org/wiki/Rancho_Ca%C3%B1ada_de_Verde_y_Arroyo_de_la_Purisima https://en.wikipedia.org/wiki/Rancho_Ca%C3%B1ada_de_Verde_y_... There are some other clues on this .tiff (fair warning, it bogged down my Shotwell viewer and swap space): http://gis.co.sanmateo.ca.us/pwraster/RSMvol018/18-RSM-PG017-RANCHO%20CANADA%20DE%20VERDE%20Y%20ARROYO%20DE%20LA%20PURISIMA.TIF http://gis.co.sanmateo.ca.us/pwraster/RSMvol018/18-RSM-PG017... Martin is on that map, and the annotations speak to the legal process of the time.