Re: Rangeley Lake, Maine in Sept
You will be there just in time to catch the fall spawning migration of the land locked salmon. Check the Regs. carefully and tie some Nine Three streamers in size 2 - 6, September is a tad early for the Brook Trout spawning season but they will take the Nine Three also. I never fished the Rankly Region but traveled to the Moosehead Lake area and fished many rivers from Jackman down to Millinocket from 1980 - 1994. During those years I used many of the traditional flies for the area but the Nine Three was best.
Have fun & don't forget the rain gear,