Magicpaddler wrote on Apr 6^th, 2013 at 11:35pm:

DD  The moraine you spoke of is south of Big Hook isn’t it.

There are several moraines in the area.  The one I referenced with respect to East Lake being shallow sits at about the mid-point of East Lake on the north shore.  A second one referenced earlier which comes down to the shore line is near the southern most reaches of East Lake along the route leading back to Central Lake.  There are actually 2 in this area but only one comes to the shore line .. these run more or less north east.

I think the one to which you refer is actually the grand daddy of moraines in this area ... I think its called the Opasquia Moraine.  The it huge by comparison to the others (roughly 2 km wide and 100 m high) and essentially runs the entire southern border of the park.  This is the reason that there are are no water channels running south in this area ... almost all terminate at the base of this moraine except for a rare few in the extreme east and west of the park and just outside park boundaries.  This is the principle reason that most water flows northward.  In addition, almost all water in the park flows into Island Lake toward the west.  So as a general rule, if you are wondering which way the water flows, think north and/or west.

dd