I did it for 5 seasons. Its a super good gig for students or ski bums. Ive spent months in New Mexico, Arizona, Texas, Colorado, deep backwoods of Montana, all over. Ive worked on engine crews, helitack crews, handcrews, hotshot crews and saw teams so I know quite a bit about the whole spectrum. PM me if you want more info. I would make about 25-30k a summer and would fund my living during the winter so i didnt have to work during school. But you earn the money. It can be hard, extremely dangerous and you basically forfeit your entire summer since youre on call at all times.
If you didnt sign up when your deadline was, you can still apply for federal jobs (forest service, which I highly recommend) thru Avue. Its a pain in the ass site, but its really the only way unless you know someone. But call around, start talking to crew bosses, engine bosses, etc on the phone. Tell them they are interested and get your name out there.
But anyone interested in it can PM me and I will be happy to answer any questions.