@charlesornstein To be clear: The Marshall Colorado fire did not spread by first burning one house, traveling along a wooden fence to the next. Rather, the tinder dry, bleached by the sun, fences became significant components of flying fragments and embers, which then ignited new spot fires along the trajectory of the over 100mph winds. In some cases, embers blasted into the attic via soffit vents burning the home from within.
It is worth noting that the prairie itself is happily rejuvenated.