The Crooked River is holding up great without any really cold days and nights to contend with so far.
It is mostly nymph fishing in the day with some midge hatches late afternoon that can offer some dry fly opportunity the last hour before dark, maybe a little longer if the cards are in your favor.
Zebra Midges, tiny Perdigons, Walts, Scuds, Winkers, Rainbow Warrior.
This time of year a good approach is take your 10′ 2 or 3 weight and think about setting it up as an indicator rod with a NZ Wool Indy, or the tiny Oros and make a 3 foot butt section of 12# Seaguar fluoro to a tippet ring, then add 6x fluorocarbon tippet off the 2 mm ring to a single fly in most places, or add a dropper tag for some of the deeper pools. You can drop shot this leader, or just fish weighed flies. Drop Shotting is adding a split shot on the tag position of the tippet and adding a tag off the tippet so the shot is on the bottom but the nymphs is above the bottom and not getting hung up as easily. It slows the drift of the fly and puts the fly in the zone to find where a lot of fish hang, snuggled to the bottom in cold water.
If a hatch occurs you can change out the leader (loop to loop so get a FFP or Loon Foam Roller to store the other leader) and add a 9 to 12′ 6x leader for a Griffiths Gnat. This leader is also good for general indicator use. And finally take any of those off, and add a traditional Mono-Rig with 25 feet of UFM or Cortland Butt material, and a sighter, 2 mm tippet ring or micro loop and 4 feet of 6x or 7x fluoro tippet to a single fly in my opinion. Carrying one rod is so liberating and this 10′ rod is a jack of all trades now.
If you want to know what I use, I like my Sage ESN HD 10′ 2 wt with a WF2 fly line for dries, and then I add a mono rig for euro nymphing and a chassis leader of dry fly leader for the other methods. this is the ultimate Crooked River rod, as is my 10′ 3 wt Echo Shadow X.