Take a look at the new Navionics XL9 Great Lakes and River Charts! They have expanded the regions to offer huge coverage areas now. Each chip is priced at $199, free shipping.
Notice that you can now get all of the USA Great Lakes AND the river maps all on one chip. Or, you can select the Canada chip and get all the USA and CA Great Lakes on one chip. The new regions are going to save consumers hundreds this year.
I don’t have this listed on the website yet, but will soon. In the meantime you can email me or send me a PM and I can tell you how to order. They are in stock now.