With mixed feelings, I got back in the pool after a long layoff. At about lap 5, I felt like a fat slug who couldn't go on. Then, after a few more laps, I was pleased that I could finish a mile. Still, I'm chagrined that it had been so long.
I've moved onto the U.S. Corps of Engineers' map page 14:
February 18, 2010, 1 mile, mile 808: Truedale Slough
The Vermillion River joins the Mississippi by way of series of lakes and sloughs, extending from Hastings down to the confluence with the Cannon River just upstream of Red Wing.
February 22, 2010, 1.25 miles, mile 807, Pierce County, Wisconsin
February 23, 2010, 1 mile, mile 806, Goodhue County, Minnesota