Hi Schmoe, Thanks for being alert to smoke in the area and a willingness to step forward and identify a positive location to report to authorities. These types of actions could result in quick responses from fire fighters and quick suppression of fires before they get out of control.
The U.S. Forest Service has over 25 fire stations on the Angeles N.F, some are staffed year round and others just during the fire season. It is important to know where these fire stations are since you could walk in and report a fire. When you were on your outing in the high country the Chilao fire station was to the west and the Big Pines fire station was to the east. Those were the closest forest service stations that you could report a fire if you did not have any other means of reporting such as cell phone, ham radio, etc.