EddyFlower has some basic beta on the best run between North Fork and Corn Creek: Untitled Page
There are two easy access points - Spring Creek Campground upstream of Shoup for a longer run, or at the old Gold Mine just upstream of the Pine Creek Bridge for a shorter run. Two take out points - at the bar at Panther Creek - it's private now and I think they charge $5 or so. Or you can take out a mile upstream at noticeable turn-around spot.
At high flows the Pine Creek run is fast and fun with big wave trains and a huge hole at Upper Dutch Oven rapid on river left, with everything else pretty much washed out.
At medium flows there are more holes but it's all read and run. The hole in Dutch is still there. The first real rapid downstream of the bridge (only 1 bridge on this 7 mile run) - Pine Creek - the line is right down the middle of river right.
At low flows the run becomes more technical but still plenty of fun.
Another run to consider is the 6 or so miles above the Indianola Ranger Station/Helipad. It's more of a class II run but includes some fun waves and rapids. The usual put in is at Dump Creek, about 1/2 mile below the end of the flat water section that starts near North Fork. The take out is at a pull out just above Indianola. Or, you can continue downstream for another 7+ miles until you get to the Pine to Panther run.
There are a couple rapids in the stretch from Panther Creek down to Corn Creek, but not much, aside from Cramer Creek rapid, a mile or two above Cache Bar takeout.