A lot of things can start a wildfire: lawn mowers, gunfire, smoldering cigarettes. It makes sense in a state dried out by drought.
But the latest culprit — a bike — is largely unheard of as a source of ignition, and is being met with disbelief in some circles.
U.S. Forest Service investigators say a bicycle pedal that scraped a rock and shot sparks on a mountain bike trail was responsible for a 122-acre blaze in the eastern Sierra this month, a finding that unleashed a firestorm of incredulity on the Internet.
“There is no chance in hell it happened like this. So absurd to even make this official,” wrote one of the more than 100 skeptics who commented on the Inyo National Forest’s Facebook page since the cause of the fire near Mammoth Lakes was reported last week. “Unless there is clear video of this ‘pedal strike ignition,’ it is 99.999 percent anticyclist BS,” another person posted.