I'll post a few photos and hopefully satisfy some curiosity I'm sure a lot of people have. Everyone checks for TFRs before they fly over the forests in fire season, right? I'll leave that as a given.
I worked for the US Forest Service as a fire fighter for 31 years. About 3 years before I retired I decided to reduce my exposure to flying on fires as much as possible. It was three years after I retired that I took these photos. I continued to work fire seasons for another 11 years after that. Now, eight more years later I am glad to have had the opportunity to do and see the things I have but I don't miss it one bit now.
The safety poster in my post above isn't just for large fires. A small fire may have just started and not have any aircraft working on it yet. But initial attack aircraft maybe on the way. So as the poster says, don't be like a moth to a flame.

You wouldn't want to conflict with this guy, A sky crane.

I was riding in a Lama on a mission to map the perimeter with GPS. Any map on a active fire is just a snap shot in time. We wanted to get as close to possible to the fire's edge to get a usable product for the next shift.

We flew as low and close as we could.

Helicopters can really spread fire all over the place if they get too low and rotor wash it...especially a spot fire...oops...this fire was way to intense for crews to be near the edge so no harm no foul.

Looking back from the other end. We flew back around to look at the area we had just flown over at low level.

On thing I always told the kids working on fires is stay alert for sudden changes in fire behavior. This one blew up in a manner of minutes.

In another couple of minutes this is as close as we wanted to get.

Zoomed in to get a perspective of the height of the flames. For comparison, the trees are about 60 feet tall.

This one is taken from Bruce Meadows airstrip in Idaho. A couple of minutes after I took this photo we had to burn out from the edge of the airstrip. With the help of a sky Crane dropping water we were able to hold it. Notice the gasses igniting in the Smoke column.
