Here is my google map that shows the Rincon (Red Box) Truck Trail referred to in the inciweb.org report.

http://maps.google.com/maps/ms?hl=en&ie=UTF8&msa=0&msid=109903579263278090335.0004727663b2ee96010ed&ll=34.260622,-117.927246&spn=0.289993,0.547256&t=p&z=11

Control line has now been completed from Mt Wilson to and along the Rincon Truck Trail. If necessary, this line will be used to stop the fire spread into the communities of Monrovia, Sierra Madre and Duarte. At this time the fire intensity in this area is very low and the fire is spreading very slowly.

The San Gabriel Wilderness is the only area where the fire was actively burning. QFT  http://inciweb.org/incident/1856/ sept 05, 2009 15:55 hours PDT (GMT -8:00) website saved complete