San Francisco’s last duel, the David Broderick and David Terry duel, occurred in this little ravine near Lake Merced in September, 1859. David Broderick got the short end of the stick, and was shot dead.. The two concrete markers in the picture are where the two men were standing. The link below will allow you to see all of the posts for this series of pictures on the western edge of San Francisco.
San Francisco Film Locations Then & Now 