Wildfire threatens San Francisco water supply

The massive blaze, which began 10 days ago, has grown to become the 13th largest in California’s recorded history.
A map posted on InciWeb, an inter-agency fire tracking website, showed the inferno nearing the Hetch Hetchy Reservoir, the main source of fresh water for 2.6m people living in the San Francisco Bay Area, some 320km to the west. Local news media reported flames from the Rim Fire were a mere 8km from the reservoir.