Put in just below Interstate Park Dam in Mitchell, IA. Traveled 13 miles down river to my take out at Seter's Landing on River Road about 5 miles South of Osage, IA. A few riffles along the way and 1 set of easy class 1 rapids at the Spring Park area. No fences, 40 - 60 ft bluffs mostly tree and brush covered and lots of wildlife including a deer, bald eagles, hawks, owls, herons, and several large turtles. There is a floating pontoon bridge across the river at the Sunny Brae Golf Course in Osage which may require an easy short portage on either side of the river. I was in a kayak and was able to pass under on the river right end of the bridge.
Very popular camping site, electric and water hookups,dump station, shelter house, modern toilet/shower facility, playground equipment at Interstate Park in Mitchell, IA.
Just for camping, $10 without elec., $15 with for a single.
From Osage, IA, drive 3 miles West on Highway 9 to Hickory Avenue. Then 2 1/2 miles North to Mitchell, IA. Cross the bridge and enter Interstate Park on West side of road. Put in below the dam. Take out at Seter's Landing is about 5 miles South of Osage on County Road T38 to 105th St. Go East on 105st which runs into River Road after about 3/4 mile. Take River Road North across river bridge and then about 1/4 mile farther on your right will be Seter's Landing.
I used a map from Nate Hoogeveen's book "Paddling Iowa".
Here's my own 14 min. YouTube video of the trip: