I decided to paddle upstream to a little creek that is always difficult to find when heading upstream. It is hidden by the vegetation at the mouth, but can be easily spotted when heading downstream. The Lewis and Clark trail in Pierre crosses it and there is a sign at the crossing/bridge labeling it as Storm's Crossing. I recall that it is named for a fallen SD soldier; I can't remember any specifics.
I did manage to miss the creek on my way upstream, but I found it after I gave up and started back downstream. I proceeded up the creek the short distance to the bridge. I had to push a few logs out of the way with the bow of my kayak to reach the bridge. It is not possible to get beyond the bridge. I then headed back to the Farm Island boat ramp (polo fields). After loading my gear/boat, I stopped at the polo fields to give Chuck heck about choosing to fly his RC planes over kayaking.