chip for Detriot River

I have humminbirds, Im heading to the detroit river to fish the mwc in April and need a chip for the river. my wuestion is the Navionics North will that have the river in it or which chip. I may never get over there again and was thinking that the Navionis north if it has the river would be a good choice because there is lake Micigan that i fish on it. your opionion is much appreciated

I just happened to have 1 of my HDS 10’s in my office and a few of my chips.
I did look at Navionics Premium East, and Detriot river is well marked and appears in 2-3 foot incraments all the way down to Lake.
I’ll check my Navionic North’s later, but they are in my boat, inside my shop, under two covers.
I was just wondering, will she ever be able to come from underneath those covers

Just plugged in my Navionics North (which is 2010 versioin) and Detriot rived down to Lake seems to be the same as The Navionics East version. Lake Michagan also on North.
Hope that helps