The Don River - subject of much discussion about natural regeneration along its lengthy valley system - takes a very unnatural right hand turn underneath the Gardiner Expressway on its way through the Keating Channel towards the Toronto Harbour. This turn is designed to force whatever silt the river is carrying to settle before it reaches the ever shrinking harbour. Each year the lower Don and Keating Channel have to be dredged to keep the harbour from silting in. For years various groups have pushed for a reengineering of this awkward condition. There are many more desirable options. Some are environmentally and even economically attractive. Yet, with every passing year many of us realize we may never see the Lower Don return to its natural condition.