http://researcharchive.calacademy.org/calwild/2003spring/stories/earlyyears.html Science Amid the Saloons: The Academy Begins] In addition to Rancho San Lorenzo he was the claimant for Rancho Cañada de la Segunda in Monterey County; and Rancho Punta de los Reyes and Rancho Punta de los Reyes Sobrante in Marin County; and Rancho Aguas Frias in Butte County - a little over 110000 acres .