MyFishFinder.com Just like iceshanty but warmer
The charts in Canada are Navionics and I believe it comes with the whole country installed.
Humminbird, Marcum, and Lowrance all have graph ice units available. Alot of people tend to shy away from them because they can get a little sluggish in sub zero temps. (-20 I believe) Marcums LX-7 and Showdown screens have a heating thingamajig built in though. Otherwise, if you fish in a heated shanty with any of the available graph units you shouldn't have a problem with the screens getting sluggish. Another thing is alot of the hardcore flasher people do not like the lag with the graphs and prefer the "realtime" display of the flashers. I own and use both graph and flasher units for icefishing and haven't noticed much difference if any in how "fast" the signal is displayed. Its just a matter of what each person prefers to use.
do the rest of you think the graph , think the memory is any help