I was stationed in Ketch for two years, loved it, and used to go out to the Naha River. It's about 12 miles from Knudson Cove, if you know the area. You hike in from the head of Naha Bay and it's about 6 miles to the lake. Kinda remote and you need a boat to get there, but it was incredible. Great steelie fishing. My disclaimer is that this was back in '89-'91. There are some great holes, or used to be anyway, above the public library, on Ketchikan creek. Right in town, but they were there. As mentioned above, ask around.