Editing San Francisco (section)

===Ecology===
[[File:Aerial view - Presidio-whole.jpg|thumb|left|Aerial view of the [[Presidio of San Francisco]] and the [[Golden Gate]]]]
Historically, [[tule elk]] were present in San Francisco County, based on archeological evidence of elk remains in at least five different [[Native Americans in the United States|Native American]] shellmounds: at Hunter's Point, Fort Mason, Stevenson Street, Market Street, and Yerba Buena.<ref>{{cite journal |title=Declines in Mammalian Foraging Efficiency during the Late Holocene, San Francisco Bay, California |last1=Broughton|first1=Jack M. |date=1994 |journal=Journal of Anthropological Archaeology |volume=13 |issue=4 |pages=371–401 |doi=10.1006/jaar.1994.1019 |url=https://www.sciencedirect.com/science/article/abs/pii/S0278416584710191 |access-date=May 27, 2020|url-access=subscription }}</ref><ref>{{cite journal |title=Paleoecological inferences from a faunal analysis of CA-SFr-07 |last1=McCrossin|first1=M. |year=1982 |journal=Journal of California and Great Basin Anthropology |volume=4 |pages=138–141}}</ref> Perhaps the first historical observer record was from the [[De Anza Expedition]] on March 23, 1776. [[Herbert Eugene Bolton]] wrote about the expedition camp at Mountain Lake, near the southern end of today's [[Presidio of San Francisco|Presidio]]: "Round about were grazing deer, and scattered here and there were the antlers of large elk."<ref>{{cite book |title=Anza's California Expeditions|volume=I. An Outpost of Empire. |first1=Herbert Eugene|last1=Bolton |publisher=University of California Press |location=Berkeley, California |year=1930 |page=393}}</ref>